NUCLEI
NUCLEUS
nucleus, cell nucleus, karyon
(noun) a part of the cell containing DNA and RNA and responsible for growth and reproduction
nucleus
(noun) any histologically identifiable mass of neural cell bodies in the brain or spinal cord
core, nucleus, core group
(noun) a small group of indispensable persons or things; “five periodicals make up the core of their publishing program”
nucleus
(noun) the positively charged dense center of an atom
nucleus
(noun) (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
Source: WordNet® 3.1
Noun
nuclei
plural of nucleus
Anagrams
• clue in, leucin, unclie
Source: Wiktionary
NUCLEUS
Nu"cle*us, n.; pl. E. Nucleuses, L. Nuclei. Etym: [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.)
Definition: 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.)
Definition: 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.
Note: The nucleus is sometimes termed the endoplast or endoblast, and
in the protozoa is supposed to be concerned in the female part of the
reproductive process. See Karyokinesis.
5. (Zoöl.)
(a) The tip, or earliest part, of a univalve or bivalve shell.
(b) The central part around which additional growths are added, as of
an operculum.
(c) A visceral mass, containing the stomach and other organs, in
Tunicata and some mollusks.
Source: Webster’s Unabridged Dictionary 1913 Edition