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Glossary of Animal Behavior Terms
beginning with letter R
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ramp Tweet Definition of ramp Like Definition of ramp on Facebook
  1. an inclined surface that connects two levels; an incline
  2. a mobile staircase that is attached to the doors of an airliner at an airport
  3. an American plant, Allium tricoccum, related to the onion
  4. (Appalachia) a promiscuous man or woman; a general insult for a worthless person
  1. to behave violently; to rage
  2. to stand in a rampant position
retromingent Tweet Definition of retromingent Like Definition of retromingent on Facebook
  1. an animal that urinate backwards - such as the camel or raccoon.
  1. that urinates backwards
  1. (slang) cowardly
roar Tweet Definition of roar Like Definition of roar on Facebook
  1. A long, loud, deep shout made with the mouth wide open.
  2. The cry of the lion.
  3. The deep cry of the bull.
  4. The sound of a motorbike or a similar engine.
  5. A show of strength or character.
  1. To make a loud, deep cry, especially from pain, anger, or other strong emotion.
  2. Of animals (especially the lion), to make a loud deep noise.
  3. Generally, of inanimate objects etc., to make a loud resounding noise.
roaring Tweet Definition of roaring Like Definition of roaring on Facebook
  1. Present participle of to roar.
  1. very, Very; intensively; extremely.
  2. Very successful; lively; profitable; thriving; prosperous.
rogue Tweet Definition of rogue Like Definition of rogue on Facebook
  1. A scoundrel, rascal or unprincipled, deceitful, and unreliable person.
  2. A mischievous scamp.
  3. A vagrant.
  4. Deceitful software pretending to be anti-spyware, but in fact being malicious software itself.
  5. An aggressive animal separate from the herd, especially an elephant.
  6. A plant that shows some undesirable variation.
  7. An entity set apart from the normal order, which acts in an independent manner. This can apply to individuals, states, or other entities.
  1. (context, of an animal, especially an elephant) Vicious and solitary.
  2. (context, by extension) large, Large, destructive and unpredictable.
    • 2004: w: Chris Wallace (journalist), Chris Wallace, Character: Profiles in Presidential Courage
    • :In the minds of Republican hard-liners, the "Silent Majority" of Americans who had elected the President, and even Nixon's two Democrat predecessors, China was a gigantic nuke-wielding state prepared to overrun the free world at any moment.
      1. operate, Operating outside of normal controls.
roll Tweet Definition of roll Like Definition of roll on Facebook
  1. The act of rolling, or state of being rolled.
the roll of a ball
the roll of waves
  1. That which rolls; a roller
  2. Specifically, a heavy cylinder used to break clods.
  3. Specifically, one of a set of revolving cylinders, or rollers, between which metal is pressed, formed, or smoothed, as in a rolling mill; as, to pass rails through the rolls.
  4. That which is rolled up; as, a roll of fat, of wool, paper, cloth, etc.
  5. Specifically, a document written on a piece of parchment, paper, or other materials which may be rolled up; a scroll.
  6. Hence, an official or public document; a register; a record; also, a catalogue; a list.
  7. Specifically, a quantity of cloth wound into a cylindrical form; as, a roll of carpeting; a roll of ribbon.
  8. Specifically, A cylindrical twist of tobacco.
  9. A kind of shortened raised biscuit or bread, often rolled or doubled upon itself.
  10. (nautical) The oscillating movement of a vessel from side to side, in sea way, as distinguished from the alternate rise and fall of bow and stern called pitching.
  11. A heavy, reverberatory sound.
the roll of cannon
the roll of thunder
  1. The uniform beating of a drum with strokes so rapid as scarcely to be distinguished by the ear.
  2. (obsolete) Part; office; duty; rí´le.
  3. A measure of parchments, containing five dozen.
  • 1882: Parchement is sold by the dozen, and by the roll of five dozens. — James Edwin Thorold Rogers, A History of Agriculture and Prices in England, Volume 4, p. 594.
    1. the rotation angle about the longitudinal axis
the roll of an aircraft
  1. The act of, or total resulting from, rolling one or more dice.
Make your roll.
Whoever gets the highest moves first.
  1. (nautical) The measure of extent to which a nautical vessel rotates on its fore-and-aft axis, causing its sides to go up and down. Compare with pitch.
  1. (ergative) To cause to revolve by turning over and over; to move by turning on an axis; to impel forward by causing to turn over and over on a supporting surface.
roll a wheel, a ball, or a barrel
  1. To wrap round on itself; to form into a spherical or cylindrical body by causing to turn over and over.
roll a sheet of paper
roll clay or putty into a ball''
  1. To bind or involve by winding, as in a bandage; to inwrap; often with up
roll up a parcel
  1. (ergative) To drive or impel forward with an easy motion, as of rolling.
a river rolls its waters to the ocean
  1. (ergative) To utter copiously, especially with sounding words; to utter with a deep sound; -- often with forth, or out.
roll forth someone's praises
roll out sentences
  1. To press or level with a roller; to spread or form with a roll, roller, or rollers.
roll a field
roll paste
roll steel rails
  1. (ergative) To move, or cause to be moved, upon, or by means of, rollers or small wheels.
  2. To beat with rapid, continuous strokes, as a drum; to sound a roll upon.
  3. (geometry) To apply (one line or surface) to another without slipping; to bring all the parts of (one line or surface) into successive contact with another, in such a manner that at every instant the parts that have been in contact are equal.
  4. To turn over in one's mind; to revolve.
  5. (US slang) A manner of behaving or a way of doing certain things; a general disposition toward a situation.
I was going to kick his ass, but he wasn't worth getting all worked up over, I don't like that.
2006, Times Herald-Record, Tuesday, November 21, by Chris McKenna?. At
:"This is how we in Spring Valley," one teen reportedly boasted.
  1. (transitive or intransitive) To throw dice.
  2. (transitive) To roll dice such that they form a given pattern or total.
If you doubles, you get an extra turn.
With two dice, you're more likely to seven than ten.
  1. To turn over and over.
The child rolled on the floor.
  1. To tumble in gymnastics.
  2. (nautical) when a nautical vessel rotates on its fore-and-aft axis, causing its sides to go up and down. Compare with pitch.
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.

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