| microcystic epithelial dystrophy | Bilateral, symmetrical intraepithelial cysts in the central area of the cornea of healthy women, without hereditary predisposition. (05 Mar 2000) |
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| microcyte | Abnormally small red blood cells, found in some types of anaemia. (18 Nov 1997) |
| microcythemia | The presence of many microcytes in the circulating blood. Synonym: microcytosis. Origin: microcyte + G. Haima, blood (05 Mar 2000) |
| microcytic anaemia | Any anaemia in which the average size of circulating erythrocytes is smaller than normal, i.e., the mean corpuscular volume is 80 cu um or less (normal range, 82 to 92 cu um). (05 Mar 2000) |
| microcytosis | Synonym: microcythemia. Origin: microcyte + G. -osis, condition (05 Mar 2000) |
| microdactylia | Smallness or shortness of the fingers or toes. Synonym: microdactylia. Origin: micro-+ G. Dactylos, finger, toe (05 Mar 2000) |
| microdactylous | Relating to or characterised by microdactyly. (05 Mar 2000) |
| microdactyly | Smallness or shortness of the fingers or toes. Synonym: microdactylia. Origin: micro-+ G. Dactylos, finger, toe (05 Mar 2000) |
| microdeletion | Loss of a piece from a chromosome that is too small to be seen through a microscope. Microdeletions require high-resolution chromosome banding, molecular chromosome analysis (with fish), or DNA analysis for detection. Disorders caused by microdeletions include angelman, digeorge, prader-willi, and williams syndromes. (12 Dec 1998) |
| microdialysis | Dialysis on a small scale, giving microlitre range samples. Used for example in studies of in vivo release of transmitters in brain tissue. (18 Nov 1997) |
| microdissection | Dissection of tissues under a microscope or magnifying glass, usually done by teasing the tissues apart by means of needles. (05 Mar 2000) |
| microdont | <anatomy> Having small teeth. Origin: Micr- + Gr, a tooth. Source: Websters Dictionary (01 Mar 1998) |
| microdontia | Microdontism A condition in which a single tooth, or pairs of teeth, or the whole dentition, may be disproportionately small. Origin: micro-+ G. Odous, tooth (05 Mar 2000) |
| microdose | A very small dose. (05 Mar 2000) |
| microdrepanocytic anaemia | Anaemia, clinically resembling sickle cell anaemia, in which individuals are compound heterozygous for the sickle cell gene and a thalassaemia gene; about 60 to 80% of haemoglobin is Hb S, up to 20% Hb F, and the remainder Hb anaemia. Synonym: sickle cell-thalassaemia disease. (05 Mar 2000) |