noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˈeɪ.fɪd/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ˈeɪ.fɪd/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:AE1 F AH0 D
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:EY1 F AH0 D
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A sap-sucking insect pest of the superfamily Aphidoidea; an aphidian.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
any of various small plant-sucking insects
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: plant louse, louse
Narrower terms: apple aphid, green apple aphid, Aphis pomi, blackfly, bean aphid, Aphis fabae, greenfly, ant cow, woolly aphid, woolly plant louse
History
Etymology
From New Latin aphis (plural aphides), coined by Swedish botanist Carolus Linnaeus in 1758. His inspiration for the name remains unclear; OED suggests it might stem from a misreading of Ancient Greek κορις (koris, “bug”) (see diagram), in which case the nominative -ις (-is) suffix was reanalyzed as -ις, -ιδος (-is, -idos); while AHD suggests a connection to Ancient Greek ἀφειδής (apheidḗs, “unsparing, lavishly borrowed”) in reference to the insects' voracity or rapid rate of production, from ἀ- (a-, “not”) + φείδομαι (pheídomai, “to spare, be thrifty, be merciful”), ultimately from Proto-Indo-European *bheyd- (“to split”). Doublet of aphis.
Across languages
Translations
74 source translations are retained for this English entry.