Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of nucleus is as below...

Chalaza :: Chalaza (n.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus..

Nucleus :: Nucleus (n.) A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks..

Nonnucleated :: Nonnucleated (a.) Without a nucleus.

Tercine :: Tercine (n.) A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac. Cf. Quintine.

Nucleus :: Nucleus (n.) The tip, or earliest part, of a univalve or bivalve shell..

Enchylemma :: Enchylemma (n.) The basal substance of the cell nucleus; a hyaline or granular substance, more or less fluid during life, in which the other parts of the nucleus are imbedded..

Nucleiform :: Nucleiform (a.) Formed like a nucleus or kernel.

Indogenide :: Indogenide (n.) Any one of the derivatives of indogen, which contain that group as a nucleus..

Mesoblast :: Mesoblast (n.) The cell nucleus; mesoplast.

Plastin :: Plastin (n.) A substance associated with nuclein in cell nuclei, and by some considered as the fundamental substance of the nucleus..

Cytoblast :: Cytoblast (n.) The nucleus of a cell; the germinal or active spot of a cellule, through or in which cell development takes place..

Centrosome :: Centrosome (n.) A peculiar rounded body lying near the nucleus of a cell. It is regarded as the dynamic element by means of which the machinery of cell division is organized.

Paranucleus :: Paranucleus (n.) Some as Nucleolus.

Multispiral :: Multispiral (a.) Having numerous spiral coils round a center or nucleus; -- said of the opercula of certain shells.

Cytoplasm :: Cytoplasm (n.) The substance of the body of a cell, as distinguished from the karyoplasma, or substance of the nucleus..

Pyridine :: Pyridine (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine..

Envelop :: Envelop (n.) The nebulous covering of the head or nucleus of a comet; -- called also coma.

Phosphonium :: Phosphonium (n.) The hypothetical radical PH4, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine..

Nucleoidioplasma :: Nucleoidioplasma (n.) Hyaline plasma contained in the nucleus of vegetable cells.

Karyokinesis :: Karyokinesis (n.) The indirect division of cells in which, prior to division of the cell protoplasm, complicated changes take place in the nucleus, attended with movement of the nuclear fibrils; -- opposed to karyostenosis. The nucleus becomes enlarged and convoluted, and finally the threads are separated into two groups which ultimately become disconnected and constitute the daughter nuclei. Called also mitosis. See Cell development, under Cell..

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