The word "atherodyde" is a rare term in the English language that is used to describe a type of instrument used to measure the velocity of air flowing in a pipe. The spelling of this word is somewhat complex, and is usually rendered as "a-ther-o-dyde." Using the IPA phonetic transcription, the word can be pronounced as "ˌæθəˈrɒdaɪd." Although not commonly used, the atherodyde is still an important tool in some industries where precise measurements of airflow are required.