| afferent |
bearing or leading toward a central organ or part, as nerves that conduct impulses to the spinal column or as veins that carry blood to the heart. |
| analogue |
in biology, an organ or structure similar to another of different evolutionary origin. [1/2 definitions] |
| anastomosis |
the surgical connection of two hollow organs or organ parts, such as the ends of a severed intestine, to make one organ. [1/2 definitions] |
| antheridium |
the organ in flowerless and seedless plants that produces male sex cells. |
| aplasia |
incomplete or faulty development of an organ or tissue. |
| aplastic |
pertaining to the incomplete or faulty development of an organ or tissue. |
| archegonium |
the female reproductive organ in ferns, mosses, and some similar plants. |
| azathioprine |
an immunosuppressive that is administered in transplant surgery to prevent rejection of the new organ. |
| barbel |
a slender, whiskerlike sensory organ on the heads of certain fishes, such as catfish. [1/2 definitions] |
| barrel organ |
a portable musical instrument consisting of a cylinder fitted with pegs or pins that either open valves to a series of pipes or strike metal tongues when the cylinder is rotated; hand organ. |
| beak |
an organ or structure, similar to a beak, on other creatures such as certain turtles or insects. [1/3 definitions] |
| blastema |
an undifferentiated or primitive mass of cells, as in an embryo or regenerating organ, that is capable of becoming organized into a specific tissue or organ. |
| brain |
the organ of the central nervous system contained within the skull, which thinks, interprets sensations, and coordinates motion and other activity in the rest of the body. [1/5 definitions] |
| bypass |
in medicine, the operation by which an alternative route of flow is created in order to avoid a blocked or diseased organ or part of such an organ. [1/5 definitions] |
| calculus |
an abnormal stonelike accumulation of mineral salts in an organ of the body, such as a kidney stone. [1/2 definitions] |
| capsule |
any of several kinds of cases or envelopes covering or enclosing parts of living things, such as the seed case of certain fruits, or the membranous cover of a joint or organ. [1/7 definitions] |
| carpel |
the female organ of a flower, consisting of a modified leaf that forms a single pistil or one member of a compound pistil, in which the seeds mature. |
| chemoreception |
the response of a sense organ or nerve ending to a chemical stimulus. |
| chemoreceptor |
a nerve ending or sensory organ, as of taste or smell, that responds to chemical stimulation. |
| circumcise |
to remove the foreskin from the sex organ of (a male) or the clitoris or labia from the sex organ of (a female). |
| clavier |
the keyboard of a piano, harpsichord, organ, or the like. [1/2 definitions] |