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Galea

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

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Gamma

/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). (wikipedia.org) 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. (biology-online.org) (Mathematics) 1. The Gamma function, symbolized by Γ. (wikipedia.org) 2. A constant approximately equal to 0.55721566, symbolized by γ. (wikipedia.org) (Physics) 1. A unit of magnetic field equal to 1 nT. (wikipedia.org) 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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Ganglion

/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. (wikipedia.org) 2. A mass of tissue. (wikipedia.org) 3. A benign cyst found on aponeurosis or tendon, usually at the wrist or dorsum of the foot. (biology-online.org) 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. (wikipedia.org) 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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Gastric

/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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