floc·cu·lus

(flŏk′yə-ləs)

n. pl. floc·cu·li (-lī′)

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 or filamentary masses of luminous gas appearing as bright patches on the surface of the sun often surrounding sunspots.

[New Latin, diminutive of Latin floccus, tuft of wool.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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. (Anatomy) anatomy a tiny ovoid prominence on each side of the cerebellum

3. (Chemistry) another word for floccule

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

floc•cu•lus

(ˈflɒk yə ləs)

n., pl. -li (-ˌlaɪ)

1. floccule.

2. one of the bright or dark patches on the sun's surface.

[1790–1800]

flocculus

A cloudlike mass of gases appearing on the surface of the Sun.

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References in periodicals archive

In the case of Jurica's microphotographs, the overlain laminate cumulus is connected to others forming flocculus in a relation between face-to-face and edge-face.

Spatial Microstructural Ordering of Expansive Clay Minerals

It represented by central convex vermis with numerous transverse fissures with small ventrolateral cerebellar auricles the so-called flocculus. The cerebellum divided by 9 primary fissures to 10 lobes which subdivided by 7 secondary fissures to 14 lobules (folia).

Morphological Investigation of the Brain of the African Ostrich (Struthio camelus)/Investigacion Morfologica del Cerebro de la Avestruz Africana (Struthio camelus)

Previous studies have shown that the histamine-containing fibers project from the tuberomammillary nucleus to the cerebellar cortex and the deep cerebellar nucleus, with a high density of histaminergic terminations in the vermis and flocculus (6,7).

Effect of histamine H1 and H2 receptor antagonists, microinjected into cerebellar vermis, on emotional memory consolidation in mice

Neuronal activity recording from a Purkinje cell in rabbits and monkeys showed VOR-related activities in the cerebellar flocculus, (18),(76)-(78) which constitutes a side pathway of VOR and regulates the timing and amplitude of the reflex (Fig.

Long-term depression and other synaptic plasticity in the cerebellum

Since Ito's original proposal [64] that the cerebellar flocculus was implicated in the calibration of the VOR, the adaptation of this reflex unambiguously linked to cerebellar function [65] in fine implies one site of plasticity in the cerebellum and another one in the brainstem.

Translational approach to behavioral learning: lessons from cerebellar plasticity

Pubescence: mainly rusty yellow to rusty brown (greyish yellow to whitish in worn specimens), paraocular region, ventral side of head, pleurae, femora and flocculus white, clypeus with very fine and short whitish hairs, vertex with intermixed black hairs, hairs of scutum, scutellum, postscutellum and propodeum bright rusty yellow in fresh specimens.

Description of three new Andrena species (Hymenoptera: Apoidea: Andrenidae) from Turkey