GLAND

gland, secretory organ, secretor, secreter

(noun) any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream

Source: WordNet® 3.1


Etymology 1

Noun

gland (plural glands)

(zoology) An organ that synthesizes a substance, such as hormones or breast milk, and releases it, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).

(botany) A secretory structure on the surface of an organ.

Hyponyms

• See also gland

Etymology 2

19th century.

Noun

gland (plural glands)

(mechanical) A compressable cylindrical case and its contents around a shaft where it passes through a barrier, intended to prevent the passage of a fluid past the barrier, such as

A gland used around a ship’s propeller shaft.

A gland used around a tap, valve or faucet.

Source: Wiktionary


Gland, n. Etym: [F. glande, L. glans, glandis, acorn; akin to Gr. Parable, n.]

1. (Anat.) (a) An organ for secreting something to be used in, or eliminated from, the body; as, the sebaceous glands of the skin; the salivary glands of the mouth. (b) An organ or part which resembles a secreting, or true, gland, as the ductless, lymphatic, pineal, and pituitary glands, the functions of which are very imperfectly known.

Note: The true secreting glands are, in principle, narrow pouches of the mucous membranes, or of the integument, lined with a continuation of the epithelium, or of the epidermis, the cells of which produce the secretion from the blood. In the larger glands, the pouches are tubular, greatly elongated, and coiled, as in the sweat glands, or subdivided and branched, making compound and racemose glands, such as the pancreas.

2. (Bot.) (a) A special organ of plants, usually minute and globular, which often secretes some kind of resinous, gummy, or aromatic product. (b) Any very small prominence.

3. (Steam Mach.)

Definition: The movable part of a stuffing box by which the packing is compressed; -- sometimes called a follower. See Illust. of Stuffing box, under Stuffing.

4. (Mach.)

Definition: The crosspiece of a bayonet clutch.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

23 November 2024

THEORETICAL

(adjective) concerned primarily with theories or hypotheses rather than practical considerations; “theoretical science”


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Coffee Trivia

Decaffeinated coffee comes from a chemical process that takes out caffeine from the beans. Pharmaceutical and soda companies buy the extracted caffeine.

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