Per' i car' di um (peri, around; kardia, the heart). The membrane wrapping the heart.

Per' i os' te um (peri, around; osteon, bone). The membrane around the bone.

Per' i stal' tic (peri, round; stallein, to arrange).
Applied to the worm-like movement of the alimentary canal.

Phar' ynx (far'-inx). From pharugx, the throat.

Pi' a Ma' ter (tender mother). See Brain.

Pig' ment. A paint.

Plas' ma (plaz'-ma). The nutritious fluid of the blood.

Pleu' ra (plu'-ra). From pleuar, a rib. The membrane that lines the chest and wraps the lungs.

Pres by o' pi a (presbus, old; ops, the eye). A defect in the eye common to old age.

Proc' ess. A projection. Sometimes it retains its ordinary meaning of "operation."