projection (pro-jek's hun). 1

A proce or prominence; any projecting appendage. 2. Any act or proce of throwing forward. In the physiology of the senses this term is used to denote the fact that we refer some of the sensations to the point in the body at which the stimulus acts, or to some point outside of the body at which the stimulus originates. The most perfect projection is made with visual sensations; each point on the retina, when stimulated, gives a sensation which is projected to the exterior along the secondary axis, pa ing through the point stimulated and the nodal point of the eye. 3. In psycho-analysis the proce by which mental conflict is displaced upon an object of the external world, usually in distorted form, binocular p. The projection into space of the two somewhat di imilar images formed by the object upon the two retinas. Each projection Igives the conception of solidity, p. of visual impre ions. The fact that stimulations of the retina are referred to the exterior to the source of the visual stimulus. Each stimulus is projected along the secondary axis from the point stimulated to the nodal point of the eye. uni ocular p. The faculty of projecting into space the impre ions made by objects upon the retina of one eye. [Lat., projicere, to throw before.] prolapse, prolapsus (pro'laps, pro-laps', pro-lap's us). A falling down of a part. Often used to signify falling of the womb, a sagging down of the uterus so that the os uteri presents at the orifice of the vagina or a part of the uterus or, it may be, the entire organ is outside the body. In the latter case the condition is spoken of as procident i a. See also procident i a and ptosis. [Lat., prolapsus, from prolabi, to fall down.] proliferating (pro-lif'er-a-ting). Undergoing proliferation; of cells, dividing to form daughter cells. proliferation (pro-lif-er-a's hun). The condition of being proliferous; growth by the multiplication of component elements (see cell genesis); in pathology, the continuous growth of cells in abnormal amount or direction. [Lat, proles, offspring, -f-, ferre, to bear.] proliferous (pro-lif'er-us). Bearing progeny; exuberant, reproducing. pro'lin. Ha Ha A. pyrrol i din-carboxylic acid, C— C I I PLC C — COOH, one of the primary N hydrolytic decomposition products of the \/H proteins. Soluble in water and alcohol. prolyl-glycin-an hydrid (pro"lil-gli"sin an-hi'drid). A compound, containing prolin and glycin combined together, as a ring compound, which has been isolated from the products of the tryptic digestion of gelatin.