Lewis & Short

sĕcūrĭclātus, a, um, adj. [securicula, II.].

  1. I. Shaped like a hatchet-head, dovetailed: cardines, Vitr. 10, 15.
  2. II. As subst.: sĕcūrĭclāta, ae, f. (sc. herba), a weed growing among lentils, hatchet-vetch, Plin. 18, 17, 44, § 155 (al. securidaca).