| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024gland1 /glænd/USA pronunciation n. [countable]- Anatomyan organ or group of cells specialized for producing liquid chemicals or secretions that are used by or released from the body:sweat glands.
glan•du•lar /ˈglændʒəlɚ/USA pronunciation adj. WordReference Random House Unabridged Dictionary of American English © 2024gland1 (gland),USA pronunciation n. - Anatomy
- 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.
- Botanya secreting organ or structure.
- Latin gland- (stem of glāns acorn); compare Italian ghianda
- 1685–95
- Mechanical Engineeringa 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. - Mechanical EngineeringSee stuffing box.
- origin, originally uncertain 1830–40
Collins Concise English Dictionary © HarperCollins Publishers:: gland /ɡlænd/ n - 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)
See also exocrine gland, endocrine gland - a structure, such as a lymph node, that resembles a gland in form
- a cell or organ in plants that synthesizes and secretes a particular substance
Etymology: 17th Century: from Latin glāns acorn gland /ɡlænd/ n - 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
Etymology: 19th Century: of unknown origin |