(medicine) A rare condition characterized by chronic, recurrent conjunctivitis associated with a pseudomembrane, and it may involve other mucous membranes in the mouth, nasopharynx, trachea, and va...

(archaic) second-person singular simple present form of excuse

A surname.

(organic chemistry) The isomer of thiosemicarbazide R-S-C(=NH)-NH-NH2 (R=H), or any of its derivatives (R=alkyl or aryl radical)