'Measle' definitions:

Definition of 'Measle'

From: GCIDE

Measle \Mea"sle\, n. (Zool.) A tapeworm larva. See 2d Measles, 4. [1913 Webster]

From: GCIDE

Measle \Mea"sle\, n. [OE. mesel, OF. mesel, LL. misellus, L. misellus unfortunate, dim. of miser. See Miser.] A leper. [Obs.] [Written also meazel, and mesel.] --Wyclif (Matt. x. 8. ). [1913 Webster]

From: GCIDE

Cysticerce \Cys"ti*cerce\ (s?s"t?-s?rs), Cysticercus \Cys`ti*cer"cus\ (-s?r"k?s), n. [NL. cysticercus, fr. Gr. ???? bladder + ke`rkos tail: cf. F. cysticerque.] (Zool.) The larval form of a tapeworm, having the head and neck of a tapeworm attached to a saclike body filled with fluid; -- called also bladder worm, hydatid, and measle (as, pork measle). [1913 Webster]
Note: These larvae live in the tissues of various living animals, and, when swallowed by a suitable carnivorous animal, develop into adult tapeworms in the intestine. See Measles, 4, Tapeworm. [1913 Webster]