医学英语构词法学生用资料.doc

Prefixes: The following are some examples of words containing prefixes showing position and their definitions. Word Definition Word Definition Aboral away from the mouth Infusion steeping a substance in water Adduction movement of a limb toward a median line Inhale to draw in breath Adoral near or directed toward the mouth (or) Laterotorsion twisting to one side Alloantigen occurs in some but not others of same species Levorotation turning or twisting to the left Allopathy second disease, condition that is incompatible with first Opisthotonos a spasm in which the spine and extremities are bent Antebrachium forearm Perinatal time period before, during or after the time of birth Antepartum before childbirth Periodontal around a mouth Antitoxic neutralizing the action of a poison Peroral through the mouth Apophysis an outgrowth or projection, especially from a bone Postanaesthetic after anaesthetic Contraception prevention of conception or pregnancy Postnasal posterior of the nasal cavity Dextrogastria displacement of the stomach to the right Precapillary preceding a capillary Diapedesis the passage of blood through the walls of blood vessels Predentin organic fiber of dentin before its calcification Dissect to cut apart or separate the tissue of a body for study Procephalic relationing to the anterior part of the head Dorsocephalad toward the back of the head Prochondral developmental stage prior to formation of cartilage Ecchondroma outgrowth from cartilage, mass protruding from bone Recuperate to recover, to regain health and strength Encephalopathy any disease of the brain Rehydration return of water to a system after its loss Endoderm innermost of the primary layers of the embryo Retrogression previous, less complex conditions Epicranium the muscle, aponeurosis, and skin covering the cranium Schizonychia splitting of the nails Excementosis outgrowth of root surface of a tooth Schizophrenia personality disorder, withdrawal from outside world He