Quick Definition
ὄρνεον, ου, τό n.n. a bird
Strong's Definition
neuter of a presumed derivative of 3733; a birdling
KJV Usage: bird, fowl
UBS Dictionary of the Greek New Testament
noun, n. | -ου | ὄρνις
4.38 · Animals · Birds
bird any kind of bird, wild or domestic All languages have at least some terms for birds, but there may be no generic term which identifies birds while excluding all other creatures which fly. For example, in some languages a term which includes all kinds of birds also includes flying insects and bats. However, since in most instances such a term has birds as its primary reference, it can usually be employed in contexts in which birds are more or less readily identified by other expressions in the passage. In other languages generic terms for birds may identify only certain classes of birds, for example, birds of prey, water birds, and birds of the forest.
In the NT occurrences of ὄρνεον, the reference is to unclean birds, either birds of prey or scavengers.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ὄρνεον, -ου, τό, abird: Rev. xviii. 2; xix.17,21. (Sept.; | Mt. xiii. 8; ᾧ (masc.) μὲν... ἄλλῳ (δὲ)... ἑτέρῳ δέ [but Hom., Thue., Xen., Plat., Joseph. antt. 3, 1, 5.)
Mounce Concise Greek Dictionary
ὄρνεον orneon 3x
a bird, fowl, Rev. 18:2; 19:17, 21*
Abbott-Smith Greek Lexicon
ὄρνεον, -ου, τό, = ὄρνις,
[in LXX chiefly for צִפּוֹר;]
a bird: Re 18:2 19:17, 21 (Hom., al.).†
Moulton & Milligan — Vocabulary of the Greek NT
ὄρνεον. This dim. form, which is, however, to be translated simply “bird” in Rev 18%, 191721 (cf. Mk 4*W), occurs uncontracted on the verso of P Petr III. 71 (iii/B.c.) ot θηρευταὶ τῶν ἀγρίων ὀρνέων : cf. also P Ryl II. 98(a)® (A.D. 154-5) πᾶν ὄρν[εο]ν, and P Lond 125918 (iv/A.D.) (=TIII. p. 240) ὄρνεα ty. For other dim! forms see P Oxy XIV. 17294 (iv/A.D.) ὀρνιθίων, and P Fay 11818 (A.D. 110) ἀγόρασον τὰ ὀρνιθάρια τῆς εἱορτῆς, ‘* buy the birds for the feast’’ (Edd.).
Liddell-Scott-Jones — Greek-English Lexicon
ὄρνεον (orneon) — bird. ὄρνεον, τό, ={ὄρνις}, bird, [Refs 8th c.BC+]
II. τὰ ὄ. the bird-market, [Refs 5th c.BC+]