the world > physical sensation > cleanness and dirtiness > cleaning > washing > washing oneself or body > [noun] > bathing > a bath > bath in which one sits (3)
A bath in which the patient sits with the lower part of the body immersed in water or some other liquid; a hip-bath or sitz-bath.
A bath taken in a sitzbath (sense 1). Cf. hip bath n. (b) at hip, n.1 compounds 5a.