arista(redirected from aristae)
Also found in: Dictionary, Thesaurus, Encyclopedia.
n. pl. aris·tae (-tē) or aris·tas
A bristlelike part or appendage, such as the awn of grains and grasses or the process near the tip of the antenna of certain flies.
a·ris′tate (-tāt) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
- a bristle at the base of the antenna in insects. In some types, e.g. syrphids, it is larger than the rest of the antenna.
- a bristle-like structure in the flowering GLUMES of grasses (an AWN).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005