| mare | The female of the horse and other equine quadrupeds. Origin: OE. Mere, AS. Mere, myre, fem of AS. Mearh horse, akin to D. Merrie mare, G. Mahre, OHG. Marah horse, meriha mare, Icel. Marr horse, OCelt. Marka (Pausan. 19, 19,4), Ir. Marc, W. March. Cf. Marshal. <medicine> Sighing, suffocative panting, intercepted utterance, with a sense of pressure across the chest, occurring during sleep; the incubus; obsolete, except in the compound nightmare. "I will ride thee o' nights like the mare." (Shak) Origin: AS. Mara incubus; akin to OHG. & Icel. Mara; cf. Pol. Mora, Bohem. Mra. Source: Websters Dictionary (01 Mar 1998) |
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| mare's-tail | 1. A long streaky cloud, spreading out like a horse's tail, and believed to indicate rain; a cirrus cloud. See Cloud. "Mackerel sky and mare's-tails Make tall ships carry low sails." (Old Rhyme) 2. <botany> An aquatic plant of the genus Hippuris (H.vulgaris), having narrow leaves in whorls. Source: Websters Dictionary (01 Mar 1998) |
| Marek disease | <disease> Infectious cancer of the lymphoid system (lymphomatosis) in chickens, caused by a contagious Herpes virus. An effective vaccine is now available. (18 Nov 1997) |
| marek's disease | A lymphoproliferative disease of fowl caused by a herpes virus. Lymphoid cell infiltrations are most common in the peripheral nerves and gonads, but widespread infiltrations may also be found in any of the visceral organs, skin, muscle, and the iris of the eye. The location of the lesions dictates the clinical signs, such as paralysis, general depression, and blindness. (12 Dec 1998) |
| Marek's disease virus | The herpesvirus that causes avian lymphomatosis (Marek's disease); is distinct from those causing other forms of leukosis. Synonym: avian lymphomatosis virus, fowl neurolymphomatosis virus, Marek's disease virus. (05 Mar 2000) |
| Marek, Josef | <person> Hungarian veterinarian and pathologist, 1867-1952. See: Marek's disease, Marek's disease virus. (05 Mar 2000) |
| marena | <zoology> A European whitefish of the genus Coregonus. Origin: NL. Salmo maraena, G. Marane, morane; so called from Lake Morin, in the March of Brandenburg, in Prussia. Source: Websters Dictionary (01 Mar 1998) |
| Marey's law | The pulse rate varies inversely with the blood pressure; i.e., the pulse is slow when the pressure is high; an expression of baroreceptor reflex influences on heart rate. (05 Mar 2000) |
| Marey, Etienne Jules | <person> French physiologist, 1830-1904. See: Marey's law. (05 Mar 2000) |
| pregnant mare's serum gonadotropin | <veterinary> Formed by the equine placenta. Its activity in animals is similar to that of the follicle-stimulating hormone; relatively ineffective in human beings. Synonym: pregnant mare's serum gonadotropin. (05 Mar 2000) |
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