NUCLEIFORM
Nu*cle"i*form, a. Etym: [L. nucleus kernel + -form.]

Defn: Formed like a nucleus or kernel.

NUCLEIN
Nu"cle*in, n. (Physiol. Chem.)

Defn: A constituent of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.

NUCLEOBRANCH
Nu"cle*o*branch, a. (Zoöl.)

Defn: Belonging to the Nucleobranchiata.
— n.

Defn: One of the Nucleobranchiata.

NUCLEOBRANCHIATA
Nu`cle*o*bran`chi*a"ta, n. pl. Etym: [NL. See Nucleus, and Branchia]
(Zoöl.)

Defn: See Heteropoda.

NUCLEOIDIOPLASMA
Nu`cle*o*id`i*o*plas"ma, n. Etym: [NL. See Nucleus, and Idioplasma.]
(Biol.)