Definition of allele in English:

allele

noun

Genetics
  • Each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

    Also called allelomorph
    • ‘Variation within a population is due to the presence of multiple alleles of a gene.’
    • ‘This result is consistent with the idea that the five members of the group are alleles of the same gene.’
    • ‘We have no two plant lines that are identical for all alleles of genes yet differ appreciably for genome size.’
    • ‘These genes have multiple alleles and are expressed either in the stigma or in the pollen.’
    • ‘In the case of electrons, nine alleles had point-like mutations and three had rearrangements.’

Origin

1930s: from German Allel, abbreviation of allelomorph.

Pronunciation:

allele

/ˈaliːl/