The Collaborative International Dictionary
Gyroma
Gyroma \Gy*ro"ma\ (j[-i]*r[=o]"m[.a]), n. [NL., fr. Gr. gyroy^n to round, bend, fr. gyro`s round.] A turning round. [R.]
Wiktionary
gyroma
n. (context medicine dated English) A large, convoluted mass in the ovary, similar to an endothelioma.