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centimorgan

(also centiMorgan)
Definition of centimorgan

noun

Genetics
  • a map unit used to express the distance between two gene loci on a chromosome. A spacing of one centimorgan indicates a one per cent chance that two genes will be separated by crossing over.

Origin:

mid 20th century: from centi- (denoting a factor of one hundredth) + the name of T. H. Morgan (see Morgan, Thomas Hunt)