process, outgrowth, appendage

a natural prolongation or projection from a part of an organism either animal or plant; "a bony process"

• horn — one of the bony outgrowths on the heads of certain ungulates
• horn — any outgrowth from the head of an organism that resembles a horn
• crest — a showy growth of e.g. feathers or skin on the head of a bird or other animal
• pseudopod, pseudopodium — temporary outgrowth used by some microorganisms as an organ of feeding or locomotion
• flagellum — long lash-like appendage used for locomotion (e.g., in sperm cells and some protozoa)
• hair — a filamentous projection or process on an organism
• cirrus — a slender flexible animal appendage as on barnacles or crinoids or many insects; often tactile
• spine — a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin
• aculea — small spiny outgrowth on the wings of certain insects
• style — a slender bristlelike or tubular process
• villus — a minute hairlike projection on mucous membrane
• tail — the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body
• fetlock — projection behind and above a horse's hoof
• tentacle — any of various elongated tactile or prehensile flexible organs that occur on the head or near the mouth in many animals used for feeling or grasping or locomotion
• arista — bristlelike process near the tip of the antenna of certain flies
• acromion — the outermost point of the spine of the shoulder blade
• ala — a flat wing-shaped process or winglike part of an organism
• alveolar arch — the part of the upper or lower jawbones in which the teeth are set
• alveolar ridge, gum ridge, alveolar process — a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth
• acrosome — a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg
• caruncle, caruncula — an outgrowth on a plant or animal such as a fowl's wattle or a protuberance near the hilum of certain seeds
• condyle — a round bump on a bone where it forms a joint with another bone
• coronoid process, processus coronoideus — a sharp triangular process projecting from a bone
• epicondyle — a projection on a bone above a condyle serving for the attachment of muscles and ligaments
• fimbria — thin projections forming a fringe (especially around the ovarian end of the Fallopian tube)
• apophysis — (anatomy) a natural outgrowth or projection on an organ or part such as the process of a vertebra
• spicule, spiculum — small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals
• osteophyte — small abnormal bony outgrowth
• papilla — a small projection of tissue at the base of a hair or tooth or feather
• papilla — a small nipple-shaped protuberance concerned with taste, touch, or smell
• appendix, vermiform appendix, vermiform process, cecal appendage — a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
• mastoid, mastoid process, mastoidal — process of the temporal bone behind the ear at the base of the skull
• styloid process — extends from the base of the temporal bone
• pterygoid process — two bony processes descending from the body of the sphenoid bone
• tuberosity, tubercle, eminence — a protuberance on a bone especially for attachment of a muscle or ligament
• zygomatic process — a slender process of the temporal bone that strengthens the zygomatic arch
• trochanter — one of the bony prominences developed near the upper extremity of the femur to which muscles are attached
• transverse process — one of two processes that extend from each vertebra and provide the point of articulation for the ribs
• odontoid process — a toothlike process at the back of 2nd vertebra of the neck
• metaphysis — the growing part of a long bone between the diaphysis and the epiphysis
• olecranon, olecranon process — process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended
• ridge — any long raised border or margin of a bone or tooth or membrane
• excrescence — (pathology) an abnormal outgrowth or enlargement of some part of the body
• plant process, enation — a natural projection or outgrowth from a plant body or organ

• body part — any part of an organism such as an organ or extremity