Definition of Nucleus. Meaning of Nucleus. Synonyms of Nucleus

Here you will find one or more explanations in English for the word Nucleus. Also in the bottom left of the page several parts of wikipedia pages related to the word Nucleus and, of course, Nucleus synonyms and on the right images related to the word Nucleus.

Definition of Nucleus

Nucleus
Nucleus Nu"cle*us, n.; pl. E. Nucleuses, L. Nuclei. [L., a kernel, dim. fr. nux, nucis, nut. Cf. Newel post.] 1. A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively. It must contain within itself a nucleus of truth. --I. Taylor. 2. (Astron.) The body or the head of a comet. 3. (Bot.) (a) An incipient ovule of soft cellular tissue. (b) A whole seed, as contained within the seed coats. 4. (Biol.) A body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division.

Meaning of Nucleus from wikipedia

- Nucleus (pl: nuclei) is a Latin word for the seed inside a fruit. It most often refers to: Atomic nucleus, the very dense central region of an atom Cell...
- In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel or seed) is a membrane-enclosed organelle found in eukaryotic...
- The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based...
- magnocellular neurosecretory cells in the paraventricular nucleus and the supraoptic nucleus of the hypothalamus produce neurohypophysial hormones, oxytocin...
- for a sequence of speech sounds. It is typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically...
- or corpus striatum (also called the neostriatum and the striate nucleus) is a nucleus (a cluster of neurons) in the subcortical basal ganglia of the forebrain...
- caudate nucleus is one of the structures that make up the dorsal striatum, which is a component of the basal ganglia. While the caudate nucleus has long...
- "pontine nucleus" or "main sensory nucleus" or "primary nucleus" or "prin****l nucleus") The spinal trigeminal nucleus The spinal trigeminal nucleus is further...
- nucleus receive different types of sensory information; the spinal trigeminal nucleus receives pain-temperature fibers, the prin****l sensory nucleus...
- The red nucleus or nucleus ruber is a structure in the rostral midbrain involved in motor coordination. The red nucleus is pale pink, which is believed...
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