ἄτομος

A. uncut, unmown, λειμών S. Tr. 200; ἄ. πώγωνος βάθη Ephipp. 14.7; ἄ. λίβανος in lumps, Dsc. 1.68.1; ἄτομον,τό, = ὑοσκύαμος, dub. in Ps.-Dsc. 4.68 (cf. ἀταῖος).

2. Gramm., of words, not compound, D.H. Th. 22.

II. that cannot be cut, indivisible, γραμμαί Arist. Ph. 206a17, cf. LI 968a1; μεγέθη Id. Ph. 187a3; esp. of particles of matter, ἐτεῇ ἄτομα (sc. σώματα)καὶ κενόν Democr. 9, 125, cf. Arist. de An. 404a2, Metaph. 1039a10; in full, ἄ. σώματα Id. Cael. 303a21, Epicur. Nat. 14 Fr. 5: sg., ἄτομόν ἐστι σῶμα στερεόν . . Id. p.129.24 U.; also ἄ. φύσεις Democr. ap. Diog.Oen. 5, Epicur. Ep. 1p.7U.; ἄτομοι,αἱ, ib.p.14 U.,al., Phld. Sign. 5,al., Alciphr. 1.34.

2. of Time, οὐχ οἷόν τε εἰς ἀ. χρόνους διαιρεῖσθαι τὸν χρόνον Arist. Ph. 263b27; κατ’ ἄ. χρόνον Id. Sens. 447b18; ἐν ἀτόμῳ in a moment, Id. Ph. 236a6, 1 Ep.Cor. 15.52; ἐν ἀ. ὀργῆς Sm. Is. 54.8.

b. metaph., infinitely small, διαφοραί Plu. Phoc. 3.

III. in Logic, individual, of terms, Pl. Sph. 229d; of the εἶδος, Arist. Metaph. 1034a8, de An. 414b27.

2. individual, Id. APo. 96b11, al.: Subst. ἄτομον,τό, Id. Cat. 1b6, 3a38, Metaph. 1058a18 (pl.), Plot. 6.2.2, al.

3. of the summum genus, πρὶν εἰς τὰ ἄ. ἐλθεῖν Arist. Metaph. 994b21. Adv. ἀτόμως, ὑπάρχειν immediately, without the intervention of a middle term, Id. APo. 79a33.