Definition of complementation in English:



  • 1mass noun The action of complementing something.

    • ‘Sometimes, marriages of politicians are contracted with this regional complementation in mind.’
  • 2Grammar
    All the clause constituents that are governed by a verb, nominalization, or adjective.

    ‘information as to a verb's complementation tells the learner about its meaning’
    • ‘This paper describes the outcome of a project to code the complementation patterns of all the verbs in Collins COBUILD English Dictionary.’
    • ‘Does the language student simply have to learn, by rote, which complementation patterns are associated with each verb in the language, or are there general guiding principles which account for the complementation patterns?’
  • 3Genetics
    The phenomenon by which the effects of two different non-allelic mutations in a gene are partly or entirely cancelled out when they occur together.

    • ‘Mutant m403 appeared to be slightly temperature sensitive for growth, but it proved too leaky to allow cloning of the wild-type gene by complementation.’
    • ‘The complete molecular analysis of the mutant, including the complementation of the mutated gene, is currently being completed and will be reported separately.’
    • ‘All strains were deleted for the endogenous pah1 gene to avoid complementation of transgene loss of function.’
    • ‘Next, we determined which gene was effective in complementation.’
    • ‘Currently, we have confirmed a male gametophytic function for four of these genes through genetic complementation and/or the isolation of additional insertion alleles.’