A distinct use of the term sound from its use in physics is that in physiology and psychology, where the term refers to the subject of perception by the brain. The field of psychoacoustics is dedicated to such studies. The physical reception of sound in any hearing organism is limited to a range of frequencies.
polygamy. the condition of having more than two spouses simultaneously. â polygamist, n. â polygamous, adj. the practice or state of being married to more than one person at a time. â polygamous, adj.
Marriage to more than one spouse, simultaneously. a mating system of animals in which one sexual partner mates with several of the opposite sex (see POLYANDRY, POLYGYNY). Polygyny is the most common form, and would seem to be present when one parent (usually the male) does not play a large part in rearing the young.