Definition from Wiktionary, the free dictionary
xyro- (“razor”) + spasm
- (rare) A spasm experienced whilst attempting to use a shaving razor.
- 1904, Hermann Oppenheim, Diseases of the Nervous System (J.B. Lippincott Co.), page 859
- I have seen in two cases a barbers’ cramp (keirospasm or xyrospasm) — i.e., a spastic contraction of the muscles of the hand and fingers, which came on in a barber at every attempt to use a razor.