sexual marketplace noun3 •A notional place where people's desirability as sexual or romantic partners is evaluated.They argue that people possess a collection of qualities that place them on a continuum of desirability in the sexual marketplace. — 2008 •A location or situation in which people are looking for sexual or romantic partners. •(euphemistic) Prostitution; the sex work industry.The third category envelops all the clients that women service in the sexual marketplace. These encounters are temporary sexual transactions that do not involve more familiarity than necessary. — 1999 formssexual marketplaces