Definition of centimorgan in English:

centimorgan

(also 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.

    • ‘The black numerals on the left of the chromosome indicate the genetic distance in centimorgans.’
    • ‘The x-axis represents the length of the chromosome in centimorgans.’
    • ‘Each horizontal axis represents the genetic map of the indicated rat chromosome in Haldane centimorgans and the markers at which genotypes were determined.’
    • ‘The distance is indicated as centimorgans with the 95% confidence interval in brackets.’
    • ‘Numbers to the left of the chromosome indicate the genetic distance in centimorgans from the centromere.’

Origin

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

Pronunciation

centimorgan

/ˈsɛntɪˌmɔːɡ(ə)n/