v. [f. L. ēvagīnāt- ppl. stem of ēvagīnā-re to unsheath, f. ē out + vagīna sheath.] trans. † a. To unsheath. Obs.0 † b. To take grain out of the husk. Obs. c. Phys. To turn (a tubular organ) inside out; to protrude by eversion of a tubular sheath. Hence Evaginated ppl. a.
165681. Blount, Glossogr., Evaginate, to draw out of a sheath or scabberd.
1661. Lovell, Hist. Anim. & Min., 281. The greater lead, and the lesser evaginate the corne.
1877. Huxley, Anat. Inv. Anim., iv. 210. The caecum is next evaginated or turned inside out, and the embryo has the form of a phial, of which the evaginated cæcum forms the neck.