TOP

Definition of grey matter noun from the Oxford Advanced Learner's Dictionary

grey matter

noun
 
/ˈɡreɪ mætə(r)/
 
/ˈɡreɪ mætər/
(US English usually gray matter)
[uncountable] (informal)
jump to other results
  1. a person’s intelligence
    • This should exercise the old grey matter.
trait
noun
 
 
From the Word list
Oxford 5000
B2
Oxford Learner's Dictionaries Word of the Day