Definition of “central”

adjective

1. in, at, of, from, containing, or forming the centre of something  ⇒ the central street in a city the central material of a golf ball 
2. main, principal, or chief; most important  ⇒ the central cause of a problem 
3. 1. of or relating to the central nervous system
   2. of or relating to the centrum of a vertebra
4. of, relating to, or denoting a vowel articulated with the tongue held in an intermediate position halfway between the positions for back and front vowels, as for the of, relating to, or denoting a vowel articulated with the tongue held in an intermediate position halfway between the positions for back and front vowels, as for the a  of English of, relating to, or denoting a vowel articulated with the tongue held in an intermediate position halfway between the positions for back and front vowels, as for the of English soda
5. (of a force) directed from or towards a point
6. informal (immediately postpositive) used to describe a place where a specified thing, quality, etc is to be found in abundance  ⇒ nostalgia central