| Marshall, John | <person> English anatomist, 1818-1891. See: Marshall's vestigial fold, Marshall's oblique vein. (05 Mar 2000) |
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| Marshall, Victor | <person> U.S. Urologist, *1913. See: Marshall-Marchetti-Krantz operation. (05 Mar 2000) |
| Marshall-Marchetti test | Manual deviation of bladder neck during strain or cough to ascertain presence of stress urinary incontinence. Synonym: Bonney test, Marshall-Marchetti test. (05 Mar 2000) |
| Marshall-Marchetti-Krantz operation | An operation for urinary stress incontinence, performed retropubically. (05 Mar 2000) |
| Marshallagia marshalli | One of the medium stomach worms of the nematode family Trichostrongylidae, found in the abomasum of sheep, goats, camels, and various wild ruminants. (05 Mar 2000) |
| marshmallow root | <botany> A genus of plants of the Mallow family. It includes the officinal marsh mallow, and the garden hollyhocks. An ornamental shrub (Hibiscus Syriacus) of the Mallow family. Origin: althaea, Gr. Source: Websters Dictionary (01 Mar 1998) |
| marsipobranch | <zoology> One of the Marsipobranchia. Source: Websters Dictionary (01 Mar 1998) |
| marsipobranchia | <zoology> A class of Vertebrata, lower than fishes, characterised by their purselike gill cavities, cartilaginous skeletons, absence of limbs, and a suckerlike mouth destitute of jaws. It includes the lampreys and hagfishes. See Cyclostoma, and Lamprey. Synonym: Marsipobranchiata, and Marsipobranchii. Origin: NL, fr. Gr. A pouch + a gill. Source: Websters Dictionary (01 Mar 1998) |
| marsupial | 1. <zoology> Having a pouch for carrying the immature young; of or pertaining to the Marsupialia. 2. <anatomy> Of or pertaining to a marsupium; as, the marsupial bones. Marsupial frog. <zoology> See Nototrema. Origin: Cf. F. Marsupial. <zoology> One of the Marsupialia. Source: Websters Dictionary (01 Mar 1998) |
| marsupial notch | A narrow notch between the cerebellar hemispheres posteriorly, occupied by the falx cerebelli. Synonym: incisura cerebelli posterior, marsupial notch, posterior notch of cerebellum. (05 Mar 2000) |
| marsupialia | <zoology> A subclass of Mammalia, including nearly all the mammals of Australia and the adjacent islands, together with the opossums of America. They differ from ordinary mammals in having the corpus callosum very small, in being implacental, and in having their young born while very immature. The female generally carries the young for some time after birth in an external pouch, or marsupium. Synonym: Marsupiata. Origin: NL, fr. L. Marsupium a pouch, bag, purse, Gr, dim. Of. Source: Websters Dictionary (01 Mar 1998) |
| marsupialisation | <procedure> A surgical technique that is used to remove a cyst. (05 Jan 1998) |
| marsupialization | Exteriorization of a cyst or other such enclosed cavity by resecting the anterior wall and suturing the cut edges of the remaining wall to adjacent edges of the skin, thereby creating a pouch. Origin: L. Marsupium, pouch (05 Mar 2000) |
| marsupian | <zoology> One of the Marsupialia. Source: Websters Dictionary (01 Mar 1998) |
| marsupiate | <zoology> Related to or resembling the marsupials; furnished with a pouch for the young, as the marsupials, and also some fishes and Crustacea. Source: Websters Dictionary (01 Mar 1998) |