Margination

Margination may refer to:
 * a sign in leukocyte extravasation
 * Marginate conch (Margistrombus marginatus), a sea snail species found in the Andaman Sea
 * Marginated damsel (Dascyllus marginatus), a fish species found in the Western Indian Ocean
 * Marginated tortoise (Testudo marginata), a tortoise species found in Greece, Italy and the Balkans