gland
gland1
glandless, adj.glandlike, adj.
/gland/, n.
1. Anat.
a. a cell, group of cells, or organ producing a secretion.
b. any of various organs or structures resembling the shape but not the function of true glands.
2. Bot. a secreting organ or structure.
[1685-95; < L gland- (s. of glans acorn); cf. It ghianda]
gland2
/gland/, n. Mach.
1. a sleeve within a stuffing box, fitted over a shaft or valve stem and tightened against compressible packing in such a way as to prevent leakage of fluid while allowing the shaft or stem to move; lantern ring.
2. See stuffing box.
[1830-40; orig. uncert.]

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I
Collection of cells or tissue that removes specific substances from the blood, alters or concentrates them, and then either releases them for further use by the body or eliminates them.

Typically, the functional cells of a gland rest on a membrane and are surrounded by a meshwork of blood vessels. Endocrine, or ductless, glands (e.g., pituitary, thyroid, adrenal) discharge hormones into the bloodstream directly rather than through ducts (see endocrine system). Exocrine glands (e.g., digestive, mammary, salivary, sweat) discharge their products through ducts.
II
(as used in expressions)
suprarenal gland
lachrymal duct and gland

* * *

      cell or tissue that removes specific substances from the blood, alters or concentrates them, and then either releases them for further use or eliminates them. Typically, a gland consists of either cuboidal or columnar epithelium resting on a basement membrane and is surrounded by a plexus, or meshwork, of blood vessels. Endocrine (endocrine system), or ductless, glands (e.g., pituitary, thyroid, adrenal) secrete substances known as hormones directly into the bloodstream rather than through ducts. Exocrine glands (e.g., salivary, sweat, digestive) discharge their products through ducts.

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Universalium. 2010.

Look at other dictionaries:

  • gland — gland …   Dictionnaire des rimes

  • gland — [ glɑ̃ ] n. m. • XIIe; lat. glans, glandis 1 ♦ Fruit du chêne, akène contenant une graine farineuse, enveloppé à sa base dans une cupule. Sangliers qui se nourrissent de glands. 2 ♦ (1538) Anat. Renflement antérieur de la verge. ⇒vulg. nœud.… …   Encyclopédie Universelle

  • gland — GLAND, glanduri, s.n. (anat.) Porţiunea terminală a penisului. – Din fr. gland. Trimis de gall, 13.09.2007. Sursa: DEX 98  GLAND s.n. Porţiunea terminală a penisului. [< fr. gland]. Trimis de LauraGellner, 02.07.2006. Sursa: DN  GLAND s …   Dicționar Român

  • gland — GLAND. s. m. Fruit de chesne & de quelques autres arbres semblables. Il y aura bien du gland cette année. on engraisse les cochons de gland. les Poëtes disent que les premiers hommes vivoient de gland. On appelle fig. Gland, Certain ouvrage de… …   Dictionnaire de l'Académie française

  • gland — Gland, Glans, glandis. Gland de chesne, Roburneae fruges. Chesne qui porte gland, Quercus glandifera. Une forest où il croist du gland, Glandaria sylua. Toute sorte de gland, Balanus …   Thresor de la langue françoyse

  • gland — gland1 [gland] n. [Fr glande < OFr glandre < L glandula, tonsil, dim. of glans (gen. glandis), acorn (< IE base * gwel , oak, acorn > Gr balanos)] 1. any organ or specialized group of cells that produces secretions, as insulin or bile …   English World dictionary

  • Gland — Gland, n. [F. glande, L. glans, glandis, acorn; akin to Gr. ? for ?, and ? to cast, throw, the acorn being the dropped fruit. Cf. {Parable}, n.] [1913 Webster] 1. (Anat.) (a) An organ for secreting something to be used in, or eliminated from, the …   The Collaborative International Dictionary of English

  • gland — [glænd] n [Date: 1600 1700; : French; Origin: glande, from Latin glans acorn ] an organ of the body which produces a substance that the body needs, such as ↑hormones, ↑sweat, or ↑saliva ▪ the pituitary gland …   Dictionary of contemporary English

  • gland — [ glænd ] noun count a part of your body that produces a chemical substance that your body needs: the thyroid gland …   Usage of the words and phrases in modern English

  • gland — 1690s, from Fr. glande (O.Fr. glandre, 13c.), from L. glandula gland of the throat, tonsil, dim. of glans (gen. glandis) acorn, nut; acorn shaped ball, from PIE root *gwele acorn (Cf. Gk. balanos, Armenian kalin, O.C.S. zelodi acorn; Lith …   Etymology dictionary

  • gland — gland. См. железа. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

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