any position assumed by a patient when lying in bed.
Origin: 1865–70; < NL, equiv. to L dēcubi-, var. s. of dēcumbere to lie down, take to one's bed (dē-de-+ -cumbere, telic v., with nasal infix, corresponding to cubāre to lie) + -tus suffix of verbal action
Main Entry: de·cu·bi·tus Pronunciation: -b&t-&s Function: noun Inflected Form: pluralde·cu·bi·ti/-b&t-"I, -"E/ 1: a position assumed in lying down decubitus> 2 a:ULCERb:BEDSORE 3: prolonged lying down (as in bed)