Search Result for "aphid": 
Wordnet 3.0

NOUN (1)

1. any of various small plant-sucking insects; 



The Collaborative International Dictionary of English v.0.48:

Aphid \A"phid\, n. (Zool.)
   One of the genus Aphis; an aphidian.
   [1913 Webster]


WordNet (r) 3.0 (2006):

aphid
    n 1: any of various small plant-sucking insects