(n): a word to which an independent meaning can be assigned
(n): a moderator who makes less extreme or uncompromising
(n): someone who mediates disputes and attempts to avoid violence
(n): a person who changes something
(n): a human being
(n): a gene that modifies the effect produced by another gene
(n): (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity