Bass-relief n. : Some as Bas-relief.

Example:


Taxonomy
bass neck, relief, truss rod, strings, bass, backward, frets, back to bass, straightness, bass strings, up-bow, adjustment, bass guitar, bow and arrow, pressure, the Bass, string tension, bends.

Defination from the web:
bass neck relief and its adjustment. ... If you over-tighten it, you can make it snap and ruin your bass neck! You can sight your neck by holding the body of your bass and looking from the bridge toward the nut. ...