A determinant is a factor or cause that makes something happen or leads directly to a decision.

The word determinant hasn't strayed much from its roots in the Latin word for "determining." As a noun or adjective, it refers to determining or deciding something. A snowstorm could be a determinant in school being canceled. Or a good health-care plan could be the determinant in someone taking a job. The determinant cause of a disease is responsible for the spread of the disease. Anything described as determinant is important.

Definitions of determinant
  1. noun
    a determining or causal element or factor
    “education is an important determinant of one's outlook on life”
    synonyms: causal factor, determinative, determiner, determining factor
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    clincher, decisive factor
    a point or fact or remark that settles something conclusively
    a cognitive factor that tends to have an effect on what you do
    a factor whose effects cannot be accurately assessed
    a distinctive influence
    morale builder
    something or someone who influences by building or strengthening morale
    canker, pestilence
    a pernicious and malign influence that is hard to get rid of
    something providing immaterial assistance to a person or cause or interest
    enticement, temptation
    something that seduces or has the quality to seduce
    type of:
    cognitive factor
    something immaterial (as a circumstance or influence) that contributes to producing a result
  2. noun
    the site on the surface of an antigen molecule to which an antibody attaches itself
    synonyms: antigenic determinant, epitope
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    type of:
    site, situation
    physical position in relation to the surroundings
  3. noun
    a square matrix used to solve simultaneous equations
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    type of:
    square matrix
    a matrix with the same number of rows and columns
  4. adjective
    having the power or quality of deciding
    “the determinative (or determinant) battle”
    synonyms: deciding, determinative, determining
    determining or having the power to determine an outcome
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