any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
"The thyroid gland synthesizes hormones essential for metabolism and releases them directly into the bloodstream."
A specialized cell, group of cells, or organ of endothelial origin in the human or animal body that synthesizes a chemical 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).
"The engineer adjusted the gland packing around the rotating shaft to stop water from leaking out of the pump housing."
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:
"The old sailor inspected the worn gland to ensure it was sealing the propeller shaft properly."
A gland used around a ship’s propeller shaft.
In plain English: A gland is an organ that makes and releases special substances your body needs to work properly.
"Your immune system relies on various glands to produce antibodies that fight off infections."
Usage: Do not confuse "gland" with "glade," which refers to an open space in a forest. The term is also rarely used outside biological or mechanical contexts, so avoid applying it metaphorically unless the specific style of your writing demands technical precision.
The word "gland" entered English in the late 17th century via French as a corruption of an Old French term derived from Latin. Originally referring to throat glands or tonsils, it ultimately traces back to the Latin root for acorn because these small organs were thought to resemble tiny nuts.