He was labeled a conchy for refusing to serve in the military.

He is often referred to as a conchie because of his pacifist beliefs.

The conchies gathered at the peace rally to protest against war.

Conchyliometry is the study of the shells of mollusks.

The conchylious shells were beautifully patterned.

The conchylaceous seashells were beautifully patterned.

The conchyliaceous shells of the mollusks are beautifully patterned.

Conchyliologists study and collect shells from various marine organisms.

She has a deep interest in conchyliology.

The conchyliologist studied the shells of various marine animals.