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/ˈgālēə/ Noun, pl. galeae 1. a Roman helmet. ( (Botany) 1. An organ or a part of a plant that is shaped like a galea (helmet). ( 2. The upper lip or helmet-shaped part of a labiate flower. ( (Entomology) 1. A mouth part found in some species of chewing insect, which is shaped like a galea (helmet). ( 2. The anterior, outer process of the second joint of the maxillae in certain insects. ( (Paleontology) 1. A genus of fossil echini, having a vaulted, helmet-shaped shell. ( (Surgery) 1. A kind of bandage for the head. ( (Medicine) 1. A headache extending all over the head. ( Word origin: Latin, a...

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/ˈgamə/ Noun, pl. gammas 1. The name of the third letter of the Greek alphabet (Γ, γ), preceded by beta (Β, β) and followed by delta, (Δ, δ). ( 2. Third letter in the greek alphabet, variable used for a number of things in physics, in plasma physics gamma is often used as the variable for growth rates of instabilities. ( (Mathematics) 1. The Gamma function, symbolized by Γ. ( 2. A constant approximately equal to 0.55721566, symbolized by γ. ( (Physics) 1. A unit of magnetic field equal to 1 nT. ( Word origin: From Greek gamma, from Phoenician gimel, literally “camel”; so called for a fancied resemblance of its shape to some part of a camel. Gamma rays (1903) originally were thought to be a third type of radiation, now known to be identical with very short X-rays....

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/ˈgaNGglēən/ Noun, pl. ganglia (Anatomy) 1. A biological tissue mass, most commonly a mass of nerve cell bodies. Cells found in a ganglion are called ganglion cells, though this term is also sometimes used to refer specifically to retinal ganglion cells. ( 2. A mass of tissue. ( 3. A benign cyst found on aponeurosis or tendon, usually at the wrist or dorsum of the foot. ( 4. A structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber. (Google Dictionary) 5. An abnormal benign swelling on a tendon sheath. (Google Dictionary) (Neuroanatomy) 1. A cluster of interconnecting nerve cells outside the brain. ( 2. A network of cells forming a nerve center in the nervous system of an invertebrate. (Google Dictionary) 3. A well-defined mass of gray matter within the central nervous system. (Google Dictionary) Word origin: From Greek ganglion “tumor,” used by Galen for “nerve bundle.” Of unknown origin; according to Galen, the proper sense of the word was “anything gathered into a ball.”...

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/ˈgastrik/ Adjective 1. Of or relating to the stomach. Word origin: with -ic + Greek gaster (genitive gastros) “stomach,” by dissimilation from *graster, literally “eater, devourer,” from gran “to gnaw, eat,” from PIE root *gras- “to devour” (cf. Greek grastis “green fodder,” Latin gramen “fodder, grass,” Old English cærse “cress”)....

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