1 [gland]
a cell, group of cells, or organ producing a secretion.
any of various organs or structures resembling the shape but not the function of true glands.
Botany. a secreting organ or structure.

1685–95; < Latin gland- (stem of glāns acorn); compare Italian ghianda

glandless, adjective
glandlike, adjective Unabridged


2 [gland]
noun Machinery.
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.

1830–40; origin uncertain Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
gland1 (ɡlænd)
1.  exocrine gland See also endocrine gland a cell or organ in man and other animals that synthesizes chemical substances and secretes them for the body to use or eliminate, either through a duct (exocrine gland) or directly into the bloodstream (endocrine gland)
2.  a structure, such as a lymph node, that resembles a gland in form
3.  a cell or organ in plants that synthesizes and secretes a particular substance
Related: adenoid
[C17: from Latin glāns acorn]

gland2 (ɡlænd)
a device that prevents leakage of fluid along a rotating shaft or reciprocating rod passing through a boundary between areas of high and low pressure. It often consists of a flanged metal sleeve bedding into a stuffing box
[C19: of unknown origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1692, from L. glandula "gland of the throat, tonsil," dim. of glans (gen. glandis) "acorn," from PIE base *gwel- "acorn, oak" (cf. Gk. balanos, Armenian kalin, O.C.S. zelodi "acorn;" Lith. gile "oak").
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

gland (glānd)

  1. A cell, a group of cells, or an organ that produces a secretion for use in or for elimination from the body.

  2. Any of various organs, such as lymph nodes, that resemble true glands but perform a nonsecretory function.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
gland  [%PREMIUM_LINK%]     (glānd)  Pronunciation Key 
An organ or group of specialized cells in the body that produces and secretes a specific substance, such as a hormone. See also endocrine gland, exocrine gland.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

glands definition

Organs or groups of cells that take substances from the blood and change them chemically so that they can be secreted later for further use by the body. There are two kinds of glands: those that secrete their substances directly into the bloodstream (endocrine glands), and those that secrete their substances through channels or ducts (such as sweat glands and salivary glands).

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for glands
This type of gland is found in the salivary glands and esophagus.
Some male hormones are produced in small amounts by the adrenal glands.
As in other members of the myrtle family, eucalyptus leaves are covered with
  oil glands.
The areola is colored from pink to dark brown and has several sebaceous glands.
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