descant /ˈdɛskænt/noun 2verb 2forms 3 noun2 •A counterpoint melody sung or played above the theme. •A lengthy discourse on a subject.Upon that simplest of themes how magnificent a descant! — 1828 verb2 •To sing or play a descant. •To discuss at length.[B]ut shun the establishment of a bachelor who has hung a pendulum between temptation and prudence till the age of———but of all subjects, age is the one on which it is most invidious to descant. — 1831 formsdescanted · descanting · descants