Definition of conchs:
(n) :
A marine gastropod of the family Strombidae which lives in its own spiral shell.
(n) :
The shell of this sea animal.
(n) :
A musical instrument made from a large spiral seashell, somewhat like a trumpet.
(v) :
To refine the flavour and texture of chocolate by warming and grinding, either in a traditional concher, or between rollers.
(v) :
To play a conch seashell as a musical instrument, by blowing through a hole made close to the origin of the spiral.
(n) :
(architecture) The semidome of an apse, or the apse itself.