(pathology) A chronic disease of the brain and spinal cord characterized by changes in sensation, visual problems, weakness, depression, difficulties with coordination and speech, impaired mobility and disability.

(genetics) The state of having three or more alleles, or distinctive forms of a gene.

plural of common multiple

plural of multiple expansion

Having more than one possible answer, to be chosen from a list provided.

plural of multiple personality

A dissociative disorder in which several distinct identities or personality states alternate in controlling the sufferer's consciousness and behaviour

(mathematics) A number which may be divided by any of a given set of numbers without a remainder.

(rail transport) A train consisting of one or more self-propelled cars capable of coupling with other units of the same or similar type and still being controlled from one cab.

plural of multiplicative operation