A truth function that is true when one or the other of its components (called disjuncts) is true, and false otherwise Also the connective denoting this function; also the compound proposition built from this connective
During meiosis, the seperation of chromosomes (homologous in meiosis I, and sister chromotids in meiosis II)
The comma that occurs between the plagal and dominant parts of a key in just harmony and results in a dissonant supertonic chord
A truth-functional relation, symbolized by the truth-functional symbol "v" and usually translated "or " The disjunction of two claims is true if and only if at least one of the claims is true; it is false if and only if both are false