All Words Glossary

Glossary of Botanical Terms
beginning with letter U
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umbel Tweet Definition of umbel Like Definition of umbel on Facebook
noun 
  1. A flat-topped or rounded flower-cluster (= inflorescence) in which the individual flower stalks arise from the same point, the youngest flowers being at the centre.
     
umbellet Tweet Definition of umbellet Like Definition of umbellet on Facebook
noun 
  1. a secondary umbel in a compound umbel such as the carrot; an umbellule
     
umbelliferous Tweet Definition of umbelliferous Like Definition of umbelliferous on Facebook
adjective 
  1. (botany) bearing umbels
  2. (botany) pertaining to a member of the family Umbelliferae
     
umbo Tweet Definition of umbo Like Definition of umbo on Facebook
noun (plural umbones or umbos)
  1. (Armor) The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
Quotations
  • 1786: It is thirteen inches diameter, made of wood covered with leather, and an iron plate decorated with nails and mouldings; the boss or umbo projects four inches. — Francis Grose, A Treatise on Ancient Armour and Weapons, page xii.
    1. A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larví¦ of echinoderms or in the tympanic membrane of the ear.
    2. (zoology) One of the lateral prominence just above the hinge of a bivalve shell.
     
underbrush Tweet Definition of underbrush Like Definition of underbrush on Facebook
noun 
  1. The small trees and other plants that clutter the floor of a forest.
     
undergrowth Tweet Definition of undergrowth Like Definition of undergrowth on Facebook
noun 
  1. those plants in a forest which only reach a relatively low height (such as shrubs and bushes)
     
Underwood Tweet Definition of Underwood Like Definition of Underwood on Facebook
proper noun 
  1. an English and Scottish topographic surname for someone who lived near a wood
  2. a habitational surname for someone who lived in several places with that name in England and Scotland
     
unripe Tweet Definition of unripe Like Definition of unripe on Facebook
adjective 
  1. Not ripe; as, unripe fruit.
  2. Developing too early; premature.
     
urceolate Tweet Definition of urceolate Like Definition of urceolate on Facebook
adjective ur.ce.o.la.te
  1. (botany) Shaped like an urn: an urceolate corolla. '']]
     
urn Tweet Definition of urn Like Definition of urn on Facebook
noun 
  1. a vase with a footed base
  2. a metal vessel for serving tea or coffee
  3. a vessel for ashes or cremains of a deceased person
     
urticant Tweet Definition of urticant Like Definition of urticant on Facebook
noun 
  1. Such a substance.
adjective 
  1. Causing itching or stinging.
     

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