a combining form with the meanings âheight,â âtip end,â âextremities of the body,â used in the formation of compound words: acrophobia. Also, especially before a vowel, acr-. Origin of acro-. < Greek, combining form of Ã¡kros topmost, highest; akin to Latin Äcer sharp.
â¢ CANTUS FIRMUS (noun) The noun CANTUS FIRMUS has 1 sense: 1. a melody used as the basis for a polyphonic composition. Familiarity information: CANTUS FIRMUS used as a noun is very rare. Dictionary entry details.
Peroneus Longus: The peroneus longus is a tendon that runs down the outside of your calf to the arch of your foot. Tendonitis here can lead to lateral ankle/foot pain and can have many causes. It is often treated with oral medications, physical therapy, orthotics, rest or often a combination of these modalities.