recessive

/rɪˈsɛsɪv/
noun
  1. A recessive genetic trait or allele.
    • The recessive for red hair can skip generations before appearing again.
    • Scientists studied how the recessive is passed down in the family line.
    • In a genetic cross, the recessive only shows up in about one-fourth of the offspring.
adjective
  1. Relating to a genetic trait that is only expressed when an individual has two copies of the gene (one from each parent), and is hidden if a dominant gene is present.
    • Blue eyes are a recessive trait, so both parents must carry the gene for a child to have them.
    • In pea plants, the white flower color is recessive to the purple color.
    • The recessive allele for cystic fibrosis only causes the disease if a person inherits two copies.
  2. Tending to go back or withdraw; not assertive or prominent.
    • In the group discussion, she played a recessive role, mostly listening to others.
    • The recessive economy showed little growth during the first quarter.
    • His recessive personality made him uncomfortable in large social gatherings.
Synonyms
Antonyms