| muraena | <zoology> A genus of large eels of the family Miraenidae. They differ from the common eel in lacking pectoral fins and in having the dorsal and anal fins continuous. The murry (Muraena Helenae) of Southern Europe was the muraena of the Romans. It is highly valued as a food fish. Origin: L, fr. Gr. Source: Websters Dictionary (01 Mar 1998) |
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| mural | 1. Of or pertaining to a wall; being on, or in, a wall; growing on, or against, a wall; as, a mural quadrant. "Mural breach." . "Mural fruit." . 2. Resembling a wall; perpendicular or steep; as, a mural precipice. <astronomy> Mural circle, a golden crown, or circle of gold indented so as to resemble a battlement, bestowed on him who first mounted the wall of a besieged place, and there lodged a standard. Origin: F, fr. L. Muralis, fr. Murus wall. See Mure a wall. Source: Websters Dictionary (01 Mar 1998) |
| mural aneurysm | Thinning, stretching, and bulging of a weakened ventricular wall, usually as a result of myocardial infarction; rarely postinflammatory or congenital. Synonym: mural aneurysm, ventricular aneurysm. (05 Mar 2000) |
| mural cell | A nonendothelial cell enclosed within the basement membrane of retinal capillaries. (05 Mar 2000) |
| mural endocarditis | Inflammation of the endocardium involving the walls of the chambers of the heart. (05 Mar 2000) |
| mural pregnancy | Pregnancy in uterine muscular wall. (05 Mar 2000) |
| mural thrombosis | The formation of a thrombus in contact with the endocardial lining of a cardiac chamber, or a large blood vessel, if not occlusive. (05 Mar 2000) |
| mural thrombus | A thrombus formed on and attached to a diseased patch of endocardium, not on a valve or on one side of a large blood vessel. See: parietal thrombus. (05 Mar 2000) |
| muramic acid | 2-Amino-3-O-(1-carboxyethyl)-2-deoxy-d-glucose;d-Glucosamine and lactate in ether linkage between the 3 and 2 positions, respectively; a constituent of the mureins in bacterial cell walls. (05 Mar 2000) |
| muramic acids | Compounds consisting of glucosamine and lactate joined by an ether linkage. They occur naturally as n-acetyl derivatives in peptidoglycan, the characteristic polysaccharide composing bacterial cell walls. (12 Dec 1998) |
| muramidase | <cell biology, enzyme> Glycosidase that hydrolyses the bond between N acetyl muramic acid and N acetyl glucosamine, thus cleaving an important polymer of the cell wall of many bacteria. Present in tears, saliva and in the lysomes of phagocytic cells, it is an important antibacterial defence, particularly against gram-positive bacteria. (18 Nov 1997) |
| muramoylpentapeptide carboxypeptidase | <enzyme> Enzyme produced by streptomyces strain r61 which catalyses the peptide cross-linking of nascent cell-wall peptidoglycan. Registry number: EC 3.4.17.8 (12 Dec 1998) |
| muramyl dipeptide | <protein> Fragment of peptidoglycan from cell wall of mycobacteria that is used as an adjuvant. (18 Nov 1997) |
| murder | 1. To kill with premediated malice; to kill (a human being) willfully, deliberately, and unlawfully. See Murder. 2. To destroy; to put an end to. "[Canst thou] murder thy breath in middle of a word?" (Shak) 3. To mutilate, spoil, or deform, as if with malice or cruelty; to mangle; as, to murder the king's English. Synonym: To kill, assassinate, slay. See Kill. Origin: OE. Mortheren, murtheren, AS. Myrrian; akin to OHG. Murdiren, Goth. Maorrjan. See Murder. Source: Websters Dictionary (01 Mar 1998) |
| murderess | A woman who commits murder. Source: Websters Dictionary (01 Mar 1998) |