12-Letter Words Containing: O,X,A,N,E

• Any of various typically yellow-brown dinoflagellates (originally grouped as genus Zooxanthella) now assigned to the genera Symbiodinium and Amphidinium, notably found in coral reefs.

• A bicyclic heterocycle, 3,7-dihydropurin-6-one, that is an intermediate in the biosynthesis of uric acid.

• a mixture of oxygen and acetylene; used to create high temperatures for cutting or welding metals

• The oral part of the pharynx, reaching from the uvula to the level of the hyoid bone.

• Any of several classes of antibiotics produced by plants in response to microorganisms

• a B vitamin that is essential for metabolism of amino acids and starch

• abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis)