There are 2 definitions of crux in English:

crux1

Syllabification: crux
Pronunciation: /krəks, kro͝oks
 
/

noun (plural cruxes or cruces /ˈkro͞oˌsēz/)

(the crux)
1The decisive or most important point at issue: the crux of the matter is that attitudes have changed
More example sentences
  • This trend may continue and therein lies the crux of the issue.
  • And this is the crux of the issue, the reality which is so often unmentioned.
  • This gets at the crux of the issue I am raising, and I want to fundamentally disagree.
Synonyms
nub, heart, essence, central point, main point, core, center, nucleus, kernel
informal bottom line
1.1A particular point of difficulty: both cruces can be resolved by a consideration of the manuscripts
More example sentences
  • One of the cruxes of the problems is that the funding is based on race and location, not on individual patient need.
  • Royal Shakespeare Company audiences, like the company, tended to be knowledgeable about the texts, anticipating how a production might handle the cruxes.
  • This was probably the first play the Folio's compositors set from such copy, which may help to explain its high percentage of misprints, errors, and cruces.

Origin

mid 17th century (denoting a representation of a cross, chiefly in crux ansata 'ankh', literally 'cross with a handle'): from Latin, literally 'cross'.

Definition of crux in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous

There are 2 definitions of crux in English:

Crux2

Syllabification: Crux
Pronunciation: /krəks, kro͝oks
 
/
Astronomy
1 another term for the Southern Cross.
1.1 (as genitive Crucis /ˈkro͞osis/) Used with a preceding letter or numeral to designate a star in this constellation: the star Beta Crucis

Origin

Latin.

Definition of crux in: