| capelin | (noun) very small northern fish; forage for sea birds and marine mammals and other fishes | Synonyms: capelan, caplin |
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| ghrelin | (noun) a gastrointestinal hormone produced by epithelial cells lining the fundus of the stomach; appears to be a stimulant for appetite and feeding, but is also a strong stimulant of growth hormone secretion from the anterior pituitary | - |
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| glutelin | (noun) a simple protein found in the seeds of cereals | - |
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| javelin | (noun) a spear thrown as a weapon or in competitive field events | - |
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| (noun) an athletic competition in which a javelin is thrown as far as possible | - |
| myelin | (noun) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers | Synonyms: medulla, myeline |
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| protirelin | (noun) hormone released by the hypothalamus that controls the release of thyroid-stimulating hormone from the anterior pituitary | Synonyms: thyrotropin-releasing factor, thyrotropin-releasing hormone, TRF, TRH |
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| theelin | (noun) a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency | Synonyms: estrone, Estronol, oestrone |
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| zeppelin | (noun) a large rigid dirigible designed to carry passengers or bombs | Synonyms: Graf Zeppelin |
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