| ALEC | artificial lung-expanding compound |
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| expanding | That expands, or may be expanded; extending; spreading; enlarging. Expanding bit, Expanding drill, a pulley so made, as in sections, that its diameter can be increased or diminished. Source: Websters Dictionary (01 Mar 1998) |
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| melanophore-expanding principle | A polypeptide hormone secreted by the intermediate lobe of the hypophysis in humans (in neurohypophysis in certain other species) which causes dispersion of melanin by melanophores, resulting in darkening of the skin, presumably by promoting melanin synthesis; this effect is readily demonstated in some lower vertebrates, such as frogs and fish; alpha-melanotropin is an N-acetylated peptide with 13 amino acids; beta-melanotropin has 22 amino acids. Synonym: intermedin, melanocyte-stimulating hormone, melanophore-expanding principle. (05 Mar 2000) |
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| expanding surface t. |
a theory of cell division which postulates that a nuclear substance is liberated, probably from chromosomes, which causes expansion of the cellular membrane at the poles; as the polar areas expand, the equator contracts, leading to division.
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| expanding | increasing in area or volume or bulk or range |
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| expanding | adding information or detail |
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