<prompt> Inability to maintain penile erection to conclude coitus to orgasm and ejaculation is called -ImpotenceFrigiditySterilityBestiality  <response>: Ans. is a i.e., Impotence Impotence in male is defined as persistent inability to develop or maintain penile erection sufficient to conclude coitus to orgasm or ejaculation. Impotence is a term generally applied to incapacity of male partner. In females the term impotence is not used, term frigidity is used. 