| macrocytic anaemia of pregnancy | An anaemia occurring in pregnancy, related to folate deficiency and characterised by a low level of haemoglobin and a reduced number of erythrocytes, which are larger than normal (macrocytes). (05 Mar 2000) |
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| macrocytic anaemia tropical | The macrocytic, megaloblastic anaemia of tropical sprue. (05 Mar 2000) |
| macrocytic hyperchromia | Hyperchromatic macrocythemia; a misnomer inasmuch as the red blood cells are larger than normal, the total amount of haemoglobin per cell is increased, but the percentage of haemoglobin per cell is usually in the normochromic range. (05 Mar 2000) |
| macrocytosis | <haematology> Macrocytosis is enlargement of the red blood cells as defined by a red cell mean corpuscular volume (MCV) of greater than 100 fl. Macrocytosis is present in 1 to 4 % of the adult population. The most common cause is alcoholism. Other causes include: nutritional deficiencies (B12 and folate), chemotherapy, drug side effects, haemolysis, liver dysfunction, myelodysplasia and hypothyroidism. (27 Jan 1998) |
| macrodactyl | <ornithology> One of a group of wading birds (Macrodactyli) having very long toes. Alternative forms: macrodactyle. Origin: Gr. Long-fingered; long + finger: cf. F. Macrodactyle. Source: Websters Dictionary (01 Mar 1998) |
| macrodactylia | Condition characterised by enlargement of one or more digits (fingers or toes). Synonym: dactylomegaly, macrodactylia, macrodactylism, macrodactyly, megalodactylia, megalodactylism, megalodactyly. Origin: mega-+ G. Daktylos, digit (05 Mar 2000) |
| macrodactylous | <zoology> Having long toes. Source: Websters Dictionary (01 Mar 1998) |
| macrodiagonal | <chemistry> The longer of two diagonals, as of a rhombic prism. See Crystallization. Origin: Macro- + diagonal. Source: Websters Dictionary (01 Mar 1998) |
| macrodome | <chemistry> A dome parallel to the longer lateral axis of an orthorhombic crystal. See Dome. Origin: Macro- + dome. Source: Websters Dictionary (01 Mar 1998) |
| macrodont | <zoology> Having large teeth. A macrodont animal. Origin: Macro- + Gr, a tooth. Source: Websters Dictionary (01 Mar 1998) |
| macrodontia | Macrodontism The state of having abnormally large teeth. Synonym: megadontism, megalodontia. (05 Mar 2000) |
| macrodystrophia lipomatosa | A rare nonfamilial disease characterised by enlargement of the fingers by lipomas, with painful degenerative arthropathy of the metacarpophalangeal and interphalangeal joints. (05 Mar 2000) |
| macrodystrophic lipomatosis | <radiology> Focal gigantism, usually in the 2nd and 3rd digits in the hand, may see increased fat in the soft tissues, bone & soft-tissue overgrowth (12 Dec 1998) |
| macroelements | Inorganic nutrients needed in relatively high daily amounts (i.e., more than 100 mg per day) e.g., calcium, phosphorus, sodium, etc. Synonym: macrominerals. (05 Mar 2000) |
| macroencephalon | Synonym: megaloencephalon. Origin: macro-+ G. Enkephalos, brain (05 Mar 2000) |