All Words Glossary

Glossary of Botanical Terms
beginning with letter R
Browse the Botanical Glossary

raceme Tweet Definition of raceme Like Definition of raceme on Facebook
  1. (botany): An inflorescence in which the flowers are arranged along a single central axis.
radical Tweet Definition of radical Like Definition of radical on Facebook
  1. Person with radical opinions.
  2. (Hist. " 19th-century England) A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism).
  3. (Hist. " Early 20th-century France) A member of an influential, centrist political party favouring moderate social reform, a republican constitution, and secular politics.
  4. (mathematics) The root of a quantity as notated by √n.
  1. (linguistics) In such logogram, logographic writing systems as the Chinese writing system, the portion of a character (if any) that provides an indication of its meaning; contrasted with phonetic.
    1. (linguistics) In Semitic languages, any one of the set of consonants (typically three) that make up a root.
    2. (chemistry) A group of atoms, joined by covalent bonds, that take part in reactions as a single unit.
  1. Of or pertaining to the root or root cause of the matter.
  2. Thorough going or fundamental.
The spread of the cancer required radical surgery, and the entire organ was removed.
  1. Favouring fundamental change, or change at the root cause of the matter.
His beliefs are radical.
  1. Slang: Extremely incredible.
That was a radical jump!
  1. (chemistry) Involving free radicals
ramify Tweet Definition of ramify Like Definition of ramify on Facebook
verbto ramify
  1. To divide into branches or subdivisions; as, to ramify an art, subject, scheme.
rank Tweet Definition of rank Like Definition of rank on Facebook
  1. position of a person, place, thing, or idea in relation to others based on a shared property such as physical location, population, or quality
Based on your test scores, you have a rank of 23.
  1. a level in an organization such as the military
Private First Class (PFC) is the lowest rank in the Marines.
  1. (context, taxonomy) a level in a scientific taxonomy system
Phylum is the taxonomic rank below kingdom and above class.
  1. (usu. pl) The lines or rows of people in an organization
He rose up through the ranks of the company from mailroom clerk to CEO.
  1. One of the horizontal lines of squares on a chessboard
  2. (music) In a pipe organ, a set of pipes of a certain quality for which each pipe corresponds to one key or pedal.
  1. to give a person, place, thing, or idea a rank
Their defense is ranked third in the league
  1. Having a very strong and bad odor.
  2. Something which is disgusting.
raphides Tweet Definition of raphides Like Definition of raphides on Facebook
  1. (plural of, raphide)
receptacle Tweet Definition of receptacle Like Definition of receptacle on Facebook
  1. A container
  2. Botanical term for that part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; also torus.
  1. In the Asteraceae, the end of the peduncle to which all of the florets of the flower head are attached.
    1. (electrical) US -- a contact device installed at an outlet for the connection of an attachment plug and flexible cord to supply portable equipment or appliances.
regular Tweet Definition of regular Like Definition of regular on Facebook
  1. A member of the British Army as opposed to a member of the Territorial Army or Reserve.
  2. A frequent, routine visitor to an establishment.
  3. (Canadian English) A coffee with one cream and one sugar.
  1. with constant frequency or pattern.
  2. normal; ordinary
  3. obeying rules
  4. (grammar) (of a verb, plural, etc) following a set or common pattern
The verb "to walk" is regular.
The noun "mouse" has the irregular plural "mice".
  1. frequent or common
He made visits to go see his mother.
  1. (snowboarding): Riding with the left foot forward.
  2. exemplary, Exemplary; excellent example of; utter.
a genius
a John Bull
reniform Tweet Definition of reniform Like Definition of reniform on Facebook
  1. Shaped like a kidney; having a circular or roughly circular shape with a notch.<ref>"reniform." Unabridged (v 1.1). Random House, Inc. 10 Apr. 2007. <>.</ref><ref name="AmHer?" />
    1. (botany, of leaves) Shaped like a kidney, with the petiole attached at the notch.
reset Tweet Definition of reset Like Definition of reset on Facebook
verb (resets, resetting, reset)
  1. To set back to the initial state.
resting Tweet Definition of resting Like Definition of resting on Facebook
  1. The action of rest; repose; inactivity; reliance; confidence.
  2. A place where one can rest; a resting-place.
  3. A pause; a break; an interlude.
  1. (present participle of, rest)
  1. That which rests; that which is not in action or in the process of growth.
  2. unemployed, Unemployed.
  3. Remaining; stationary.
reticulate Tweet Definition of reticulate Like Definition of reticulate on Facebook
verb (reticulat, ing)
  1. (transitive) To distribute or move via a network.
  2. (transitive) To divide into or form a network.
  3. (intransitive) To create a network.
  1. Network-like in form or appearance.
rhizome Tweet Definition of rhizome Like Definition of rhizome on Facebook
  1. a horizontal underground stem of some plants that sends out roots and shoots from its nodes
rind Tweet Definition of rind Like Definition of rind on Facebook
  1. a hard, tough outer layer, particularly on food such as fruit, cheese, etc.
Ring Tweet Definition of Ring Like Definition of Ring on Facebook
proper noun (infl, en, proper noun)
  1. An Irish family name.
ringbark Tweet Definition of ringbark Like Definition of ringbark on Facebook
  1. To remove the bark from a tree in a ring all the way around its trunk, normally killing the tree (because nutrients are carried through the phloem, the layers immediately under the bark, which layers are damaged by the process).
ringent Tweet Definition of ringent Like Definition of ringent on Facebook
  1. Having the semblance of lips parted wide, such as may be observed in certain flowers.
ripe Tweet Definition of ripe Like Definition of ripe on Facebook
adjective (riper, ripest)
  1. Ready for reaping or gathering; having attained perfection; mature; -- said of fruits, seeds, etc.; as, ripe grain.
  2. Advanced to the state of fitness for use; mellow; as, ripe cheese; ripe wine.
  3. (figurative) Having attained its full development; mature; perfected; consummate.
  4. (archaic) Maturated or suppurated; ready to discharge; -- said of sores, tumors, etc.
  5. (rfd-redundant) Ready for action or effect; prepared.
  6. (rfd-redundant) Like ripened fruit in ruddiness and plumpness.
  7. Intoxicated.
    • 1611, w:William Shakespeare, William Shakespeare, s:The Tempest, The Tempest, Act V, Scene 1,
    • :<span style="font-variant:small-caps">Alonso:</span> And Trinculo is reeling-: where should they / Find this grand liquor that hath gilded them? / How cam'st thou in this pickle?
      1. Of a conflict between parties, having developed to a stage where the conflict may be reviewed by a court of law.
ripen Tweet Definition of ripen Like Definition of ripen on Facebook
  1. (intransitive) to grow ripe; to become mature, as in botany: grain, fruit, flowers, and the like; as, grapes ripen in the sun.
  2. (intransitive) To approach or come to perfection.
  3. (transitive) To cause to mature; to make ripe; as, the warm days ripened the corn.
  4. (transitive) To mature; to fit or prepare; to bring to perfection; as, to ripen the judgment.
    When faith and love, which parted from thee never, Had ripined thy iust soul to dwell with God. --Milton.
rise Tweet Definition of rise Like Definition of rise on Facebook
  1. The action of moving upwards
    1. An increase (in a quantity, price, etc)
  2. (UK, Ireland) A pay rise (rfv-sense)
verb (rises, rising, rose, risen)
  1. (intransitive) To move upwards.
We watched the balloon .
  1. (intransitive, of a celestial body) To appear to move upwards from behind the horizon of a planet as a result of the planet's rotation
The sun was rising in the East.
  1. (intransitive) To be resurrected
He rose from the grave.
He is risen!
  1. (intransitive) of a quantity, price, etc, To increase.
rockery Tweet Definition of rockery Like Definition of rockery on Facebook
  1. a section of a garden made from decorative rocks and alpine plants
Rod Tweet Definition of Rod Like Definition of Rod on Facebook
proper noun
  1. (given name, male)
root Tweet Definition of root Like Definition of root on Facebook
  1. The part of a plant, generally underground, that absorbs water and nutrients.
  2. The part of a tooth extending into the bone holding the tooth in place.
  3. The part of a hair under the skin that holds the hair in place.
  4. source, Source.
The love of money is the of all evil
  1. (arithmetic) Of a number or expression, a number which, when raised to a specify, specified power, yields the specified number or expression.
The cube of 27 is 3.
  1. (arithmetic) A square root (understood if no power is specified; in which case, "the root of" is often abbreviated to "root").
Multiply by 2.
  1. (analysis) A zero (of a function).
  2. (context, graphtheory, computing) The single node of a tree that has no parent.
  3. (italbrac, philology) A word from which another word or words are derived.
  4. (computing) In UNIX terminology, the first user account with complete access to the operating system and its configuration, found at the root of the directory structure.
  5. (computing) The person who manages accounts on a UNIX system.
  1. To rummage, to search as if by digging in soil, to root out.
  2. To cheer to show support for a sports team, etc.
    • 1908, w:Jack Norworth, Jack Norworth, w:Take Me Out to the Ball Game, Take Me Out to the Ball Game
    • : Let me , , for the home team,
      1. (italbrac, Australian coarse slang) To have sexual intercourse.
rootlet Tweet Definition of rootlet Like Definition of rootlet on Facebook
  1. The smallest roots, hair roots.
rosary Tweet Definition of rosary Like Definition of rosary on Facebook
noun (rosaries)
  1. A series of Roman Catholic prayers, usually made up of five or fifteen, or twenty decades of Hail Marys, each decade beginning with Our Father and ending with a Gloria Be to the Father. Other prayers are also incorporated into the rosary.
  2. A string of beads used in counting the prayers said in a rosary
  3. A string of beads used in praying by members of religions or denominations other than Roman Catholicism such as the Anglican Church
rosette Tweet Definition of rosette Like Definition of rosette on Facebook
  1. An imitation of a rose by means of ribbon or other material, -- used as an ornament or a badge.
  2. An ornament in the form of a rose or roundel, -much used in decoration.
  3. A red color. See roset.
  4. A rose burner. See under rose.
  5. Any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins.
  6. A flowerlike color marking; as, the rosettes on the leopard.
Ross Tweet Definition of Ross Like Definition of Ross on Facebook
proper noun
  1. An English and Scottish habitational surname derived from any of several places of that name, from Gaelic ros "headland".
  2. (given name, male), transferred use of the surname since early nineteenth century.
ruderal Tweet Definition of ruderal Like Definition of ruderal on Facebook
  1. any plant growing in rubbish or very poor soil
  1. That grows in rubbish or poor soil
rugose Tweet Definition of rugose Like Definition of rugose on Facebook
  1. Having wrinkles, creases or ridges
  2. (botany) Having a rough, wrinkled surface
running Tweet Definition of running Like Definition of running on Facebook
  1. The action of the verb to run.
His running of the business leaves something to be desired.
  1. The activity of running as a form of exercise or as a sport.
Running is good exercise.
  1. (present participle of, run)
  1. That which runs or run.
running paint
running taps
  1. (context, informal) consecutively; in a row
Mom's strawberry jam won the blue ribbon at the Holland County Fair three years .

Browse the Dictionary

  Words Starting With:
  Words Ending With:
  Words Containing:
  Words That Match:

Translate Into:
Dutch   French   German
Italian   Spanish
    Show results per page.

Allwords Copyright 1998-2022 All rights reserved.

Popular Pages