Source : Webster's Revised Unabridged Dictionary (1913)

Accumbent \Ac*cum"bent\ (-bent), a.
   1. Leaning or reclining, as the ancients did at their meals.

            The Roman . . . accumbent posture in eating.
                                                  --Arbuthnot.

   2. (Bot.) Lying against anything, as one part of a leaf
      against another leaf. --Gray.

            Accumbent cotyledons have their edges placed against
            the caulicle.                         --Eaton.

Accumbent \Ac*cum"bent\, n.
   One who reclines at table.

Source : WordNet®

accumbent
     adj : lying down; in a position of comfort or rest [syn: {decumbent},
            {recumbent}, {reclining}]