floc·cu·lus (fl k y -ls)n. pl. floc·cu·li (-l   ) 1. A small fluffy mass or tuft. 2. Anatomy Either of two small lobes on the lower posterior border of the cerebellum. 3. Astronomy Any of various cloudlike masses of gases appearing as bright or dark patches on the surface of the sun. [New Latin, diminutive of Latin floccus, tuft of wool.] |
flocculus [ˈflɒkjʊləs]
n pl -li [-ˌlaɪ]
1. (Astronomy) a marking on the sun's surface or in its atmosphere, as seen on a spectroheliogram. It consists of calcium when lighter than the surroundings and of hydrogen when darker
2. (Life Sciences & Allied Applications / Anatomy) Anatomy a tiny ovoid prominence on each side of the cerebellum
3. (Chemistry) another word for floccule
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