Cuspidation refers to the state of having pointed or sharp teeth. Some synonyms for this word include fang, tusk, tooth, denticle, and incisor. These words describe the sharpness or pointedness of teeth, and can be used to convey the same meaning as cuspidation. Other similar words include serration, prickliness, jaggedness, and barb, which all describe the sharpness of different objects. Using synonyms like these can help add variety and depth to one's writing, as well as make it more interesting for readers.