Pronunciation: (trän-shā'; Fr. trän-she'),[key] —n., —pl.-chetsPronunciation: (-shāz'; Fr. -she').[key]Archaeol. a stone implement with a horizontal, chisellike cutting edge, found at Mesolithic and Neolithic sites in macrolithic form, used as an adz, and in microlithic form, often mounted as the cutting head of an arrow. Cf. macrolith, microlith.