radioimmunosorbent test (RIST)

radioimmunosorbent test (RIST) /rā′dē·ō·im′yənōsôr′-bənt/ [L, radius + immunis + absorbere, to swallow] , a test that uses serum immunoglobulin E to detect allergies to various substances such as certain cosmetics, animal fur, dust, and grasses.