Any of certain crystals, typically needle-shaped and composed of calcium oxalate, which are found, usually in bundles, in particular cells…

Cell Biology. Any of various normal or abnormal structures found within the cytoplasm or nucleus of a cell. Frequently with distinguishing word.

= raphide, n.

A substance that is an intracellular precursor or storage form of mucin. Frequently attributive. Also called mucinogen.

Cytology. cell sap (see quot. 1875); nuclear sap, the fluid within the nuclear membrane.

Botany. A component of an aleurone grain (a protein storage vacuole found in certain plant tissues) consisting of a roughly spherical body…

A needle-shaped crystal; spec. = raphide, n.

Botany. A small spherical or elliptical structure found in the chloroplasts of many algae and hornworts, associated with carbon fixation and starch…

= mucigen, n.

Botany. An organelle in the cytoplasm of a plant cell bound by a double membrane and usually containing pigment or food substances, e.g. a…

= molluscum body n. (a).

a lightly staining cell structure resembling the nucleolus.

(a) any of the characteristic ovoid bodies found in the core of a nodule of molluscum contagiosum, representing degenerate epidermal cells filled…

(a) Zoology a calcareous particle in the statocyst of an invertebrate; cf. otolith, n. 1; (b) Botany each of a number of specialized mobile starch…

The Golgi body (see Golgi, n. d), typically consisting of a stack of flattened vesicles (cisternae); (also) any of the individual vesicles…

An organelle, usually located near the nucleus of a cell, which is involved in the regulation of cell cycle progression and the organization of…

any of various large basophilic granules containing ribosomes, found in the cell body of neurons.

= Nissl body n. at sense 2.

Nissl bodies collectively.

A protoplasmic body from which spores or similar reproductive bodies are developed.

= kinetosome, n.; also (rare), = kinetoplast, n. a.

A natural globule of fat or lipid suspended in the cytoplasm of a cell.

= statoconium n.

A cytoplasmic structure which forms the base of a cilium or flagellum.

Used attributively and in the possessive to designate various microscopical methods introduced by… Golgi apparatus, Golgi body, Golgi complex, Golg…

(a) A structure lying close to a kinetosome in some protozoa, esp. trypanosomes. (b) This structure together with the kinetosome (now rare or obsolete…

a lipoid granule in the cytoplasm, esp. one seen in live preparations and possibly related to the Golgi apparatus.

Any of the particles which constitute the lightest fraction obtained by ultracentrifugation of cell contents under specific conditions and which…

Biology. An agent in some strains of Paramecium aurelia that confers on cells possessing it the property of producing a substance toxic to Paramecium…

A basophilic inclusion body containing iron, found in erythrocytes in certain types of anaemia and hyposplenism. Usually in plural.

a small organelle, esp. a peroxisome.

A cytoplasmic cell organelle widely found in animal tissues which contains hydrolytic enzymes enclosed in a membrane.

a membrane-bound cytoplasmic body containing iron.

Each of numerous minute particles of RNA and associated proteins found in living cells, either free in the cytoplasm or attached to the…

An organelle of melanocytes in which melanin is synthesized and stored.

Cytology. A saccular vesicle in some intracellular structures, esp. in the endoplasmic reticulum and Golgi apparatus.

A microscopic tubular structure; spec. any of the hollow tubules composed of polymeric tubulin that are present in the cytoplasm, cilia, and…

A plant or microbial cell organelle formed by invagination of the plasmalemma and composed of material derived from it.

A structure formed in the cytoplasm of a cell by the fusion of a phagosome and a lysosome.

A cellular particle consisting of messenger RNA and protein, in which form the RNA is unavailable for translation or processing and thereby protected…

Cell Biology. A single intact ribosome, esp. when bound to messenger RNA.

any of the small sac-like organelles that contain and discharge mucoid material in some protozoans.

A small organelle (microbody) present in the cytoplasm of many types of cell which contains enzymes which generate or act upon hydrogen peroxide…

A club-shaped, lysosome-like secretory organelle which is found in the motile stages of parasitic protozoans of the phylum Apicomplexa (which…

A fibrous protein constituent of the membranes of red blood cells, forming a network on the inside of the plasma membrane.

(a) a particle of ribonucleoprotein and virus DNA found in the cytoplasm of certain virus-infected cells; (b) a liposome into which viral proteins…