An eicosanoid is a lipid consisting of twenty or more carbons. Lipids as molecules are extremely long amphipathic hydrocarbon chains, between two and twenty carbons connected to a COOH or COO- tail. Eicosanoids are the upper range of lipids, pushing the maximum. They can be either saturated or unsaturated. They will generally be solids at room temperature, with a consistancy similar to waxes.

A type of hormone which forms when the body breaks down arachidonic acid. Examples include the leukotrienes, lipoxins, prostaglandins, and thrombaxanes.

From the BioTech Dictionary at For further information see the BioTech homenode.

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