cirrhus

plural cirrhi

1. alternativeAlternative form of cirrus.

   Of his stiff red hair there remained only this orange-whitey cirrhus formation.

   1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, →ISBN, page 320

   1 more example

   The two middle feathers of the tail have no webs, except a very small one at the base and at the extreme tip, forming wire-like cirrhi, which spread out in an elegant double curve, and vary from twenty-four to thirty-four inches long.

   1869, Alfred Russel Wallace, The Malay Archipelago, volume II, London: Macmillan and Co., page 390

2. MycologyA mucus-bound ribbon-like mass of spores exuded from a fungus.