S: (n) body part (any part of an organism such as an organ or extremity)
S: (n) saddle (posterior part of the back of a domestic fowl)
S: (n) underpart (a part lying on the lower side or underneath an animal's body) "the warbler has a white throat and underparts"; "a woodland mouse with white underparts"
S: (n) thorax (part of an insect's body that bears the wings and legs)
S: (n) apparatus ((anatomy) a group of body parts that work together to perform a given function) "the breathing apparatus"
S: (n) adnexa, annexa (accessory or adjoining anatomical parts or appendages to an organ (especially of the embryo)) "Fallopian tubes and ovaries are adnexa of the uterus"
S: (n) area, region (a part of an animal that has a special function or is supplied by a given artery or nerve) "in the abdominal region"
S: (n) dilator (a muscle or nerve that dilates or widens a body part)
S: (n) groove, vallecula ((anatomy) any furrow or channel on a bodily structure or part)
S: (n) partition ((anatomy) a structure that separates areas in an organism)
S: (n) dorsum (the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part)) "the dorsum of the foot"
S: (n) back, dorsum (the posterior part of a human (or animal) body from the neck to the end of the spine) "his back was nicely tanned"
S: (n) joint, articulation, articulatio ((anatomy) the point of connection between two bones or elements of a skeleton (especially if it allows motion))
S: (n) loins (the region of the hips and groin and lower abdomen)
S: (n) feature, lineament (the characteristic parts of a person's face: eyes and nose and mouth and chin) "an expression of pleasure crossed his features"; "his lineaments were very regular"
S: (n) rudiment (the remains of a body part that was functional at an earlier stage of life) "Meckel's diverticulum is the rudiment of the embryonic yolk sac"