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] |
bladder |
an organ inside the body that collects urine. The bladder gets larger when it fills and smaller when it becomes empty. |
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 in the body that controls thought, movement, and feeling. The brain is inside the skull. |
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). |