CRIMSON TIDE

The term "crimson tide" has several meanings.

★ The sports teams of the University of Alabama

★ The term "crimson tide" ( aka red tide) is is also used to describe a particular type of algal bloom common to the Gulf of Mexico, and is also called "red tide". This type of bloom is caused by a species of dinoflagellate known as ''Karenia brevis'', and these blooms occur almost annually along Florida waters. The density of these organisms during a bloom can exceed tens of millions of cells per liter of seawater, and often discolor the water a deep reddish-brown or crimson hue. The most conspicuous effects of crimson tides are the associated wildlife mortalities among marine and coastal species of fish, birds, marine mammals and other organisms. In the case of Florida red tides, these mortalities are caused by exposure to a potent neurotoxin produced naturally by ''Karenia brevis'', called brevetoxin.

★ Menstruation slang A woman's monthly menstrual cycle. Name possibly derives from oceanic tides with regards to fluid volume produced, or from crimson as in reference to the colour anger c.f. rag rage.

★ '''Crimson Tide''', a 1995 movie which takes place aboard the ''USS Alabama''

★ '''The Crimson Tide''', a book in the Fighting Fantasy series written by Paul Mason and illustrated by Terry Oakes.

★ The sports teams of Glencoe High School

★ The sports teams of Concord High School

★ The sports teams of Everett High School
"Crimson Tide" - A cocktail that consists of Vodka and pomegranate juice.