Definition of Coherent

Adjective: coherent kow'heer-unt or ku'heer-unt

Marked by an orderly, logical, and aesthetically consistent relation of parts
"a coherent argument";
- consistent, logical, ordered
Capable of thinking and expressing yourself in a clear and consistent manner
"she was more coherent than she had been just after the accident";
- logical, lucid
(physics) of waves having a constant phase relation
Sticking together
"two coherent sheets";
- tenacious