The word "Biangulated" is spelled with a "B" followed by the prefix "tri-" and the word "angulated". The prefix "tri-" means "three" and the root word "angulated" refers to something with angles or corners. The spelling of this word can be transcribed using the International Phonetic Alphabet as /ˌtraɪˈæŋɡjʊleɪtɪd/. This word is often used in geometry to describe a shape with three corners or angles.