| molt | To cast off feathers, hair, or cuticle; to undergo ecdysis. See: desquamate. Synonym: moult. Origin: L. Muto, to change (05 Mar 2000) |
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| molteno implants | Devices implanted to control intraocular pressure by allowing aqueous fluid to drain from the anterior chamber. The implant was named for dr. Anthony molteno, a south african ophthalmologist, now of new zealand. (hoffman, pocket glossary of ophthalmologic terminology, 1989; telephone conversation with dr. Donald abrams, krieger eye institute, baltimore) (12 Dec 1998) |
| molting | Casting off feathers, hair, or cuticle. Molting is a process of sloughing or desquamation, especially the shedding of an outer covering and the development of a new one. This phenomenon permits growth in arthropods, skin renewal in amphibians and reptiles, and the shedding of winter coats in birds and mammals. (12 Dec 1998) |
| moly | 1. A fabulous herb of occult power, having a black root and white blossoms, said by Homer to have been given by Hermes to Ulysses to counteract the spells of Circe. 2. <botany> A kind of garlic (Allium Moly) with large yellow flowers. Synonym: golden garlic. Origin: L, fr. Gr. Source: Websters Dictionary (01 Mar 1998) |
| molybdate | <chemistry> A salt of molybdic acid. Source: Websters Dictionary (01 Mar 1998) |
| molybdena | <chemical> See Molybdenite. Origin: L. Molybdaena galena, Gr, fr. Lead. Source: Websters Dictionary (01 Mar 1998) |
| molybdenic | Molybdenous Relating to molybdenum. (05 Mar 2000) |
| molybdenite | <chemical> A mineral occurring in soft, lead-gray, foliated masses or scales, resembling graphite; sulphide of molybdenum. Origin: Cf. F. Molybdenite. See Molybdena. Source: Websters Dictionary (01 Mar 1998) |
| molybdenous | <chemistry> See Molybdous. Source: Websters Dictionary (01 Mar 1998) |
| molybdenum | <chemistry> A rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic weight 95.9. Origin: NL., cf. F. Molybdene. See Molybdena. Source: Websters Dictionary (01 Mar 1998) |
| molybdenum breakthrough | <radiology> 0.15 uCi Mo-99 / mCi Tc-99m, must check EVERY elution of generator, use dose calibrator and lead shield, Mo-99 emits beta particles, has 67-hr half-life, it's taken up by liver (12 Dec 1998) |
| molybdenum cofactor | A complex of molybdenum and molybdopterin required for a number of enzymes. A deficiency of this cofactor will result in lower activities of sulfite oxidase, xanthine dehydrogenase, and aldehyde oxidase causing elevated levels of sulfite, thiosulfite, xanthine, etc. (05 Mar 2000) |
| molybdenum target tube | An X-ray tube with an anode surface made of molybdenum instead of tungsten, used in mammography. (05 Mar 2000) |
| molybdenum-99 | A reactor-produced radioisotope of molybdenum with a half-life of 2.7476 days, used in radionuclide generators for the production of technetium-99m. (05 Mar 2000) |
| molybdenum-iron protein aldehyde oxidoreductase | <enzyme> Related to xanthine oxidase; isolated from desulfovibrio gigas Registry number: EC 1.2.7.- Synonym: mop protein (26 Jun 1999) |