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See kiwi.

[New Latin Apteryx, genus name : a- + Greek pterux, wing; see pet- in Indo-European roots.]


(Animals) another name for kiwi1
[C19: from New Latin: wingless creature; see apterous]


(ˈki wi)

n., pl. -wis.
1. any of several flightless, nocturnal, ratite birds comprising the order Apterygiformes, of New Zealand.
2. Also called ki′wi•fruit` (-ˌfrut) the egg-sized edible berry of the Chinese gooseberry, having fuzzy brownish skin and green flesh.
3. Informal. a New Zealander.
[1825–35; < Maori]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.apteryx - nocturnal flightless bird of New Zealand having a long neck and stout legsapteryx - nocturnal flightless bird of New Zealand having a long neck and stout legs; only surviving representative of the order Apterygiformes
flightless bird, ratite, ratite bird - flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds
genus Apteryx - type genus of the Apterygidae: kiwis
References in classic literature ?
If about a dozen genera of birds had become extinct or were unknown, who would have ventured to have surmised that birds might have existed which used their wings solely as flappers, like the logger-headed duck(Micropterus of Eyton); as fins in the water and front legs on the land, like the penguin; as sails, like the ostrich; and functionally for no purpose, like the Apteryx.
For example, call temporal, frequency characteristics (Little Spotted Kiwi, Apteryx owenii), and syllable stereotype and the amplitude of the harmonics (Northern Cardinal, Cardinalis cardinalis) have been reported to vary between the sexes (Yamaguchi 1998, Digby et al.
Some of the better known third-party image programs include Apteryx XRayVision, XDR and Tigerview.