talus Get Printable Handwriting (ta-lus) 2 syllables Learn It! Spelling Test Definition noun. 1 a sloping mass of loose rocks at the base of a cliff; 2 the bone in the ankle that articulates with the leg bones to form the ankle joint Example Sentence The talus lay at the base of the cliff. Synonyms scree; sloping mass; pile; hill of rocks Antonyms ditch Share with your friends: