Quick Definition
γαστήρ, γαστρός, ἡ n.f. the womb, stomach, to be pregnant
Strong's Definition
of uncertain derivation; the stomach; by analogy, the matrix; figuratively, a gourmand
KJV Usage: belly, + with child, womb
UBS Dictionary of the Greek New Testament
noun, f. | -τρός
8.68 · Body, Body Parts, and Body Products · Parts of the Body
belly, stomach, womb the inward parts of the body, either the digestive system (as in γαστέρες ἀργαί, literally ‘lazy bellies,’ but meaning ‘gluttons’ TIT 1:12) or the womb (in set phrases such as συλλαμβάνω ἐν γαστρί ‘to conceive’ LUK 1:31; ἐν γαστρὶ ἔχω ‘be pregnant’ MAT 1:18 and elsewhere) See also 23.19, 23.49, and 23.50.
23.19 · Physiological Processes and States · Eat, Drink
glutton (a figurative extension of meaning of γαστήρ[a] ‘belly,’ 8.68) a person who habitually eats excessively A glutton is often spoken of idiomatically, for example, ‘a large belly’ or ‘a person who is only a stomach’ or ‘a professional eater.’
23.50 · Physiological Processes and States · Birth, Procreation
Collocation: ἐν γαστρὶ ἔχω
pregnant, to be pregnant (an idiom, literally: to have in the womb) to be in a state of pregnancy This expression contrasts with the meaning of συλλαμβάνω[b], 23.49, in that it seems to focus more upon the state of pregnancy rather than the event of conception.
It is impossible to determine whether in MAT 1:23 (ἐν γαστρὶ ἕξει καὶ τέξεται υἱόν ‘she will be pregnant and bear a son’) the focus is upon the state of pregnancy or the fact of conception (see 23.49).
MAT 1:18 · MAT 1:23 · MAT 24:19 · MRK 13:17 · LUK 21:23 · 1TH 5:3 · REV 12:2
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
γαστήρ, -pds (poet. -épos), 7, in Grk. auth. fr. Hom. down ; in Sept. for 103; 1. the belly; by meton. of the whole for a part, 2. Lat. uterus, the womb: ἐν yaστρὶ ἔχειν to be with child [see ἔχω, I. 1 b.]: Mt. i. 18, 23; xxiv. 19; Mk. xiii. 17; Lk. xxi. 23; 1 Th.v. 3; Rev. xii. 2; (in Sept. for 777, Gen. xvi. 4 sq.; xxxviii. 25; Is. vii. 14, οἷο. ; Hdt. 3, 32 and vit. Hom. 2; Artem. oneir. 2,18 p. 105; 3, 32 p.177; Pausan., Hdian., al.); ovAλαμβάνεσθαι ἐν γαστρί to conceive, become pregnant, Lk. 1. 81. 3. the stomach; by synecdoche a glutton, gormandizer, aman who is as it were all stomach, Hes. theog. 26 (so also yaorpis, Arstph. av. 1604; Ael. v. h. 1, 28; and Lat. venter in Lucil. sat. 2, 24 ed. Gerl. ‘ vivite ventres’) : γαστέρες dpyai, Tit. i. 12; see ἀργός, Ὁ.
Mounce Concise Greek Dictionary
γαστήρ gastēr 9x
the belly, stomach; the womb, Lk. 1:31; ἐν γαστρὶ ἔχειν, to be with child, Mt. 1:18, 23; 24:19, et al.; γαστέρες, gluttons, Tit. 1:12
Abbott-Smith Greek Lexicon
γαστήρ, -τρός, ἡ,
[in LXX for בֶּטֶן, ἐν γ. ἔχειν for הרה, ἐν γ. λαμβάνειν for חרה ;]
the belly: metaph., a glutton, Tit 1:12.
the womb: ἐν γ. ἔχειν, to be with child, Mt 1:18, 23 (LXX) 24:19, Mk 13:17, Lk 21:23, I Th 5:3, Re 12:2; εν γ. συλλαμβ., to conceive, Lk 1:31.†
Moulton & Milligan — Vocabulary of the Greek NT
γαστήρ. The phrase ἐν γαστρὶ ἔχειν (cf. MGr ἐγγαστρώνομαι), found in Herodotus, and the medical writers from Ilippocrates down (see Hobart, p. 92), may be quoted from P Ryl IT. 6815 (B.c, 89), where one woman complains of another who ἔϊπληξέν] με... . ἐγ γαστρῇ] ἔχουσαν πεντάμηνον. It is used of a sow, P Magd 45 (iii/p.c.), and P Flor II. 130% (A.D. 257) καταπι]ανθεῖσαν ὃν ἔχουσαν καὶ ev γ]αστρί. Cf. νὼ 8028 (iii/B.c.) πένθ᾽ ἔτη ὡς ἐκύησε ἐγ γασίτρ]ὶ Κι λεὼ βάρος," ἔγκυος δὲ γενομένα ἐγ γαστρὶ ἐφόρει τρία ἔτη. In Vettius Valens, p. 193° we have ἐὰν κατὰ γαστρὸς ἔχῃ. Tor the common compound γαστροκνήμιον --- ‘‘ calf of the leg,’” see BGU III. 97514 (Α.1». 45) (=Selections, p. 42) οὐλὴ καστροκνημίῳ (/. yaotpo-). »Ε γε. A good example of the emphasis imparted by this particle is afforded by P Lond 4218 (n.c. 168)(=TI. p. 30, Se/ections, p- 10) eis πᾶν τι ἐληλυθυῖα διὰ τὴν τοῦ σίτου τιμήν, Kal , γέεννα Solkolioa ν[Ὁ]γ [y]e σοῦ παραγενομένου τεύξεσθαί τινος ἀναψυχῆς, ‘having come to the last extremity because of the high price of corn, and thinking that now at last on your return I should obtain some relief.’’ The same document, 1. 23, illustrates the μήτιγε of 1 Cor 63—ph ὅτι ye τοσούτου χρόνου ἐπιγεγονότος, ‘‘not to speak of so much time having gone by”’ (see /vo/eg. p. 240). For the combination et δὲ μή ye cf. P Oxy VIII. 11598 (late iii/a.D.) εἰ δὲ μή ye, σύνταξαι αὐτῷ ὅτι ἐλεύσεται μέχρι le Papevad, “otherwise, arrange with him that he shall come by the 13th Phamenoth”’ (Ed.), Chvest. I. 167%5 (B.C. 131) προνοήθητι ὡς μάλιστα μὲν συνπληρωθήσεται τὰ τοῦ παρελθόντος ἔτους κεφ[άἸλαια, εἰ δὲ μή γε, οὐκ ἐλάσσω τῶν Kt (ταλάντων), “if τ but if not, at any rate . ..’’, Cagnat IV. 833 (Iierapolis, after ii/A.D.) οὐδενὶ δὲ ἑτέρῳ ἐξέσται κηδευθῆναι" εἰ δὲ μή γε. ὃ ἐπιχειρήσας δώσει τῷ ἱερωτάτῳ ταμείῳ δηνάρια pupta—the editor needlessly extrudes γε. possible, . On εἴ ye, καίτοι γε, μενοῦν ye, etc., see these combinations in their places below.
Liddell-Scott-Jones — Greek-English Lexicon
γαστήρ (gastēr) — belly. γαστήρ, ἡ, genitive έρος, γαστρός: dative -έρι, γαστρί (the longer forms in Epic dialect, Lyric poetry, and once in Trag., [Refs 5th c.BC+]: dative plural γαστῆρσι [Refs 5th c.BC+]:—paunch, belly, [Refs 8th c.BC+]; γ. ἀσπίδος the hollow of a shield, [Refs 7th c.BC+]; belly or wide part of a bottle, [Refs 5th c.BC+]
2. the belly, as craving food, κέλεται δέ ἑ γ. [Refs 8th c.BC+]; γαστέρι δ᾽ οὔ πως ἔστι νέκυν πενθῆσαι, i. e. by fasting, [Refs 8th c.BC+]; to express gluttony, γαστέρες οἶον [Refs 8th c.BC+]; γαστρὸς ἐγκρατής master of his belly, [Refs]; γαστρὶ δουλεύειν, χαρίζεσθαι, to be the slave of his belly, [Refs]; γ. δελεάζεσθαι[Refs 4th c.BC+]; τᾶς γαστρὸς φείδεσθαι, com. of one who has nothing to eat, [Refs 3rd c.BC+]
3. paunch stuffed with mincemeat, sausage, haggis, [Refs 8th c.BC+]
II. womb, ὅντινα γαστέρι μήτηρ.. φέροι [Refs 8th c.BC+]; ἐκ γαττρός from the womb, from infancy, [Refs 6th c.BC+]; ἐν γαστρὶ ἔχουσα big with child, [Refs 5th c.BC+]; ἐν γ. φέρουσα [Refs 5th c.BC+]; ἐν γ. λαβεῖν conceive, [LXX+4th c.BC+]; συλλαμβάνειν variant [LXX+NT+5th c.BC+]; κατὰ γαστρὸς ἔχειν Vett.[Refs 2nd c.AD+]