- any 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.
Origin of aphid
Examples from the Web for aphid
Aphid (af'-id) The plant louse, of which there are a great many kinds.The Insect Folk
Margaret Warner Morley
Let the pupils see an aphid sucking the juice of a plant; this may be done by bringing in a twig infested by aphids.
He laughed in my face, and brought forward certain well-known facts in the reproduction of the aphid or cabbage-louse.
I once observed a young spider approaching an aphid, which was facing its enemy.
The reproduction of the Aphid constitutes one of the most interesting chapters in the history of the animal kingdom.
Word Origin and History for aphid
1884, anglicized from Modern Latin aphides, plural of aphis, coined by Linnaeus (1758), though where he got it and why he applied it to the plant louse are mysteries. The theory favored by OED as "least improbable" is that it derives from the plural of Greek apheides "unsparing, lavishly bestowed," in reference either to the "prodigious rate of production" of the insects or their voracity. They also are known as ant-cows.