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.
Trapezius. Along with the latissimus dorsi, rhomboids, and levator scapula, the trapezius muscle is one of the widest back muscles. Broad muscle bands cross the back, providing upright posture support. The trapezius and semispinalis capitis muscles create a muscle column along the back portion of the neck.