| Mott cell | <pathology> Plasma cells containing large eosinophilic inclusions, found in the brain in cases of African trypanosomiasis. (18 Nov 1997) |
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| motte | A clump of trees in a prairie. Origin: Cf. F. Motte a clod, clump, or hillock. Source: Websters Dictionary (01 Mar 1998) |
| mottle | Fine inhomogeneity of an area of generally uniform opacity on a photograph or radiograph; noise. Origin: fr. Motley, fr. M.E. Mot, speck (05 Mar 2000) |
| mottled | Marked with spots of different colours; variegated; spotted; as, mottled wood. "The mottled meadows." Origin: From Motley. Source: Websters Dictionary (01 Mar 1998) |
| mottled enamel | Alterations in enamel structure due to excessive fluoride ingestion during tooth formation; varies in appearance from small white opacities to yellow and black spotting. Nanoid enamel, a condition of abnormal thinness of the enamel. Synonym: dwarfed enamel. Whorled enamel, enamel in which the rods assume a spiral or twisting course. (05 Mar 2000) |
| mottles | <botany> Spots or blotches of different colour or shades of colour interspersed within the dominant matrix colour in a soil layer. Distinct mottles are readily seen and easily distinguished from the colour of the matrix, prominent mottles are obvious and mottling is one of the outstanding features of the horizon. (09 Oct 1997) |
| mottling | An area of skin comprised of macular lesions of varying shades or colours. Origin: E. Motley, variegated in colour (05 Mar 2000) |
| Motulsky dye reduction test | A test for glucose-6-phosphate dehydrogenase deficiency in the blood, using a mixture of brilliant cresyl blue, glucose-6-phosphate, and NADP. (05 Mar 2000) |