This word is affected by the sound shift.

He is an expert in musicology.

He is an expert in orthoepy, teaching pronunciation.

This room is covered with soundproofing material, so the sound doesn't leak outside.

He honked the car horn to get my attention.

Verbs of the lower second conjugation are important for understanding Japanese grammar.

He started a special exercise to train his serratus posterior inferior muscle.

The obliquus capitis inferior muscle is a part of the neck muscles, helping to tilt the head.

The depressor anguli oris is the muscle that lowers the corners of our mouth when we are sad.

She lowered her eyebrows using the depressor supercilii.