‖ amentumBot.|əmɛntəm| Pl. -a. [L. amentum a thong or strap. Cf. ament1.] A catkin. 1770Milne Bot.Dict. A iij, Scales forming an amentum or catkin.1870H. Macmillan Bible Teach. iv. 77 Their [cedars'] fruit consists of an amentum, the pericarps of which..are imbricated woody scales.