Definition of fitness in English:

fitness

Syllabification: fit·ness
Pronunciation: /ˈfitnis
 
/

noun

  • 1The condition of being physically fit and healthy: disease and lack of fitness are closely related [as modifier]: a fitness test
    More example sentences
    • The aim of exercise is to achieve a beneficial level of fitness and health, physically and mentally.
    • The site features a variety of fitness and health tests.
    • Physical fitness and health is the main preoccupation of young women today.
    Synonyms
    good health, strength, robustness, vigor, athleticism, toughness, physical fitness, muscularity; good condition, good shape, well-being
  • 1.1The quality of being suitable to fulfill a particular role or task: he had a year in which to establish his fitness for the office
    More example sentences
    • Spotting a leather armchair, he walks around it a few times, as if checking its fitness for the task ahead.
    • A dispute arose as to the quality and fitness for purpose of the machines.
    • To keep the pressure off, however, she won't go public with more detail until she is certain of her fitness for each.
    Synonyms
    suitability, capability, competence, ability, aptitude; readiness, preparedness, eligibility
  • 1.2 Biology An organism’s ability to survive and reproduce in a particular environment: if sharp teeth increase fitness, then genes causing teeth to be sharp will increase in frequency
    More example sentences
    • The differential fitnesses are weighted averages of phenotype fitnesses.
    • We predict the relative fitnesses of hybrid genotypes by calculating the expected numbers of each type of incompatibility.
    • We assume that the relative fitnesses of these genotypes remain constant.

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