Category: G
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Gleba
The spore-producing tissue, or spore mass, within the peridium of a gasteromycete.
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Germ pore
(Of spores) The differentiated tip on a spore where the spore wall is so thin it appears as if a hole or opening is present; the place through which the germ tube often extends upon spore germination.
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Gasteromycete
One of a group of diverse basidiomycetes that develop spores inside spore cases and do not actively discharge their spores, for example, puffballs, stinkhorns, and bird’s nest fungi.
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Gynecomastia
Abnormal enlargement of breast tissue in men. The development of the breasts when physiologically inappropriate. Inappropriate development of the mammary glands in males. Abnormal enlargement of the breasts of a male, generally resulting from too much of the female sex hormone estrogen. Temporary swelling of a male’s breasts can occur in newborns (from hormones from…
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Guthrie test
A test used on babies to detect the presence of phenylketonuria. A medical test used in screening for phenylketonuria, routinely given (often by law) to most newborns. A routine screening test for phenylketonuria in newborns consisting of placing a small amount of blood on filter paper to detect the presence of excessive phenylalanine in the…
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Goitrogenic
Pertaining to substances causing goiters.
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Glomerulus
A tiny hall of microscopic blood vessels on the end of the renal tubules. A group of tiny blood vessels within the nephron of the kidney. A group of blood vessels which filter waste matter from the blood in a kidney. Glomeruli, cluster, especially the network of blood capillaries, contained in Bowman’s capsule of a…
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Glenoid
Having the semblance of a socket. Shaped like a small shallow cup or socket. Resembling a socket of a joint; the depressed or indented articular surface. The term applied to the shallow socket on the shoulder-blade into which the humerus fits, forming the shoulder-joint. This term refers to something that is “pit or socket-like.” For…
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Giemsa Stain
A process of staining bacteria for identification. Demonstration of spirochaetes, flagella etc. by overnight staining with dilute alkaline Giemsa stain, after fixation in osmic acid vapour. A solution for staining microorganisms such as protozoa, rickettsiae, and viral inclusion bodies, to make them detectable in laboratory samples. A mixture of methylene blue and eosin, used for…
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Gastrectomy
Surgical removal of all or part of the stomach; it is usually done to stop hemorrhage from an ulcer or to remove a chronic ulcer or cancer. A partial gastrectomy is the removal of part of the stomach, and a total gastrectomy is the removal of the entire stomach. A partial removal is most commonly…