crux Meaning, Definition & Usage

  1. noun a small conspicuous constellation in the southern hemisphere in the Milky Way near Centaurus
    Southern Cross; Crux Australis.
  2. noun the most important point
    crux of the matter.

WordNet

Crux noun
Etymology
L., cross, torture, trouble.
Wordforms
plural E Cruxes L Cruces
Definitions
  1. Anything that is very puzzling or difficult to explain. Dr. Sheridan.
    The perpetual crux of New Testament chronologists. Strauss.

Webster 1913