τρῆμα, ατος, τό,
(τετραίνω) perforation, aperture, orifice, [[ 5th-6th c.BC: Aristophanes Comicus “Vespae” 141, 5th-6th c.BC: Plato Philosophus “Gorgias” 494b, 2nd c.AD: Galenus Medicus 6.178,580; τὰ τ. τῶν οὐάτων 5th c.BC: Hippocrates Medicus “περὶ σαρκῶν” 15 ] Refs 5th c.BC+]; τ. τυφλόν the foramen caecum in the skull, [[ 2nd c.AD: Galenus Medicus 2.838] Refs 2nd c.AD+]; τῆς ἀρτηρίας, [τοῦ αἰδοίου], [[ 4th c.BC: Aristoteles Philosophus “Historia Animalium” 495a29, 497a25 ] Refs 4th c.BC+]; the hole in the beam of a balance, [[ “Theologumena Arithmeticae” 29. ] Refs]
__2 ={τρύπημα}, obscene meaning, [[ 5th-6th c.BC: Aristophanes Comicus “Ecclesiazusae” 906 (Lyric poetry), “Lys.” 410. ] Refs 5th c.BC+]
__II of the holes or pips of dice, [[ 5th-6th c.BC: Amipsias Comicus 20. ] Refs 5th c.BC+]