Category: R

Tendency to relapse, or to return to a former condition.  

The relapse of a disease or recurrence of a symptom. The recurrence of a disease. In criminology, a return to criminal behavior.  

The movement of chemical receptors from one cellular structure to another, e.g., from the cell membrane to the cytoplasm.  

A method of identifying useful drugs by exposing large numbers of chemicals to cellular receptors and selecting those agents that attach to and activate the receptors.  

The release channel for calcium ions that is found on the membranes of the sarcoplasmic reticulum of skeletal muscles.  

One of the hair cells in the cristae of the ampulla of the semicircular ducts of the ear. It is stimulated by angular acceleration or rotation.  

A container for holding a gas or a distillate.  

Reestablishment of an opening through a vessel that had been previously occluded.  

In radiology, the percentage of individuals asked to return for follow-up imaging after an anomaly is found on an initial study, e.g., the number of women who are screened with mammography and who have to return for spot films, ultrasound, or magnetic resonance imaging.  

A test for excessive blood clotting, used especially in cancer-related thrombosis. Also known as the modified recalcification test.