15-Letter Words Containing: T,R,A,C,Y

• the relation that exists when things occur at the same time

• an adjustment that causes something to occur or recur in unison

• coordinating by causing to indicate the same time

• a yellow crystalline antibiotic (trademark Terramycin) obtained from a soil actinomycete; used to treat various bacterial and rickettsial infections

• The use of pharmaceuticals to treat disease

• extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds