12-Letter Words Containing: H,A,D,I,T,H

• A disturbance to an otherwise normal biological rhythm (especially that of the heart).

• A hydrate whose solid contains one molecule of water of crystallization per two molecules, or per two unit cells

• the internal and external use of water in the treatment of disease

• A phospholipid

• Any of many marine worms, of the phylum Hemichordata, that have a primitive notochord

• Of, pertaining to, or characteristic of these animals