NUCLEOLUS • E-FREE TRANSLATION.COM • Definition of Nucleolus

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noun

Nucleolus n. (pl. nucleoli)

A little nucleus.

(Biol.) A small rounded body contained in the nucleus of a cell or a protozoan. Note: It was termed by Agassiz the entoblast. In the protozoa, where it may be situated on one side of the nucleus, it is sometimes called the endoplastule, and is supposed to be concerned in the male part of the reproductive process. See Nucleus.

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Etymology of 'Nucleolus'

Collaborative International Dictionary of English 0.48

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"Nucleolus" Quotes from Famous Books

... free calciferous cells in which no nucleus was visible, other and rather larger free cells were seen on three occasions; and these contained a distinct nucleus and nucleolus. They were only so far acted on by acetic acid that the nucleus was thus rendered more distinct. A very small concretion was removed from between two of the lamellae within an anterior gland. It was imbedded in pulpy cellular matter, with many free calciferous cells, together with ...

— The Formation of Vegetable Mould through the action of worms with • Charles Darwin

Words linked to "Nucleolus" : nucleolus organiser, cell nucleus, cell organelle, karyon, cell organ, nucleolus organizer