ELATER n.
lateridæ, having the habit, when laid on the back, of giving a sudden upward spring, by a quick movement of the articulation between the abdomen and thorax; -- called also click beetle, spring beetle, and snapping beetle.
EXPEDITIOUS a.
dition, or efficiency and rapidity in action; performed with, or acting with, expedition; quick; having celerity; speedily; as, an expeditious march or messenger. -- Ex`pe*di"tious*ly, adv. -- Ex`pe*di"tious*ness, n.