Zool. [mod. L., a. Gr. Λάχεσις the name of one of the Fates.] A genus of venomous American snakes of the rattlesnake family (Crotalidæ).
1872. Darwin, Emotions, iv. 109. In the Lachesis … the tail ends in a single, large, lancet-shaped point or scale.
1887. Homeopathic World, 1 Nov., 492. The writer speaks of a firm … using 250 ‘Lachesis’ … tails per annum.
