| Mn | Symbol for manganese. (05 Mar 2000) |
|---|---|
| MN blood group antigens | <haematology, immunology> A pair of blood group antigens governed by genes that segregate independently of the ABO locus. The alleles are codominant and there are three types MM, NN and MN. Glycophorin has M or N activity and this is associated with oligosaccharides attached to the amino terminal portion of the molecule. M type glycophorin differs from N type in amino acid residues 1 and 5, although the antigenic determinants are associated with the carbohydrate side chains. (18 Nov 1997) |
| mnaemic hypothesis | The theory that stimuli or irritants leave definite traces (engrams) on the protoplasm of the animal or plant, and when these stimuli are regularly repeated they induce a habit which persists after the stimuli cease; assuming that the germ cells share with the nerve cells in the possession of engrams, acquired habits may thus be transmitted to the descendants. Synonym: mnaemic theory, mnemism, Semon-Hering theory. (05 Mar 2000) |
| mnaemic theory | The theory that stimuli or irritants leave definite traces (engrams) on the protoplasm of the animal or plant, and when these stimuli are regularly repeated they induce a habit which persists after the stimuli cease; assuming that the germ cells share with the nerve cells in the possession of engrams, acquired habits may thus be transmitted to the descendants. Synonym: mnaemic theory, mnemism, Semon-Hering theory. (05 Mar 2000) |
| MND | <abbreviation> Motor neuron disease. (05 Mar 2000) |
| mneme | 1. The enduring quality in the mind that accounts for the facts of memory; the engram of a specific experience. Origin: G. Mneme, memory (05 Mar 2000) |
| mnemenic | Mnaemic Relating to memory. (05 Mar 2000) |
| mnemism | Synonym: mnaemic hypothesis. Origin: G. Mneme, memory (05 Mar 2000) |
| mnemonic | 1. Assisting the memory. Synonym: mnemonic. 2. Relating to the medical history of a patient. (05 Mar 2000) |
| mnemonics | The art of improving the memory; a system for aiding the memory. Origin: G. Mnemonikos, mnemonic, pertaining to memory (05 Mar 2000) |
| MNSs blood group | See Blood Groups appendix. (05 Mar 2000) |
| mnss blood-group system | A system of universal human blood group isoantigens with many associated subgroups. The m and n traits are codominant and the s and s traits are probably very closely linked alleles, including the u antigen. This system is most frequently used in paternity studies. (12 Dec 1998) |