WordReference Random House Learner's Dictionary of American English © 2025
a•phid /ˈeɪfɪd, ˈæfɪd/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Insectsa tiny insect that sucks the sap from the stems and leaves of various plants.
a•phid
(ā′fid, af′id),USA pronunciation n.
a•phid•i•an
(ə fid′ē ən),USA pronunciation adj., n.
a•phid′i•ous, adj.
- Insectsany of numerous tiny soft-bodied insects of the family Aphididae of worldwide distribution, that suck the sap from the stems and leaves of various plants, some developing wings when overcrowding occurs: an important pest of many fruit trees and vegetable crops. Also called plant louse.
- 1880–85; back formation from aphides, plural of aphis
Collins Concise English Dictionary © HarperCollins Publishers::
'aphid' also found in these entries (note: many are not synonyms or translations):
American blight
- adelgid
- ant cow
- aphid lion
- aphis
- balsam woolly aphid
- bean aphid
- blackfly
- cabbage aphid
- corn-leaf aphid
- corn-root aphid
- cornfield ant
- green peach aphid
- greenbug
- greenfly
- pale chrysanthemum aphid
- pea aphid
- pine leaf aphid
- plant louse
- rose aphid
- siphuncle
- spinach aphid
- spotted alfalfa aphid
- spruce gall aphid
- tobacco aphid
- woolly aphid