concentrated

concentrated /ˈkɑːnsənˌtreɪtəd/ adjective
concentrated
/ˈkɑːnsənˌtreɪtəd/
adjective
Britannica Dictionary definition of CONCENTRATED
[more concentrated; most concentrated]
1 
: made stronger or more pure by removing water
2 
: existing or happening together in one place : not spread out
3 
always used before a noun : done in a way that involves a lot of effort and attention

be concentrated

◊ Something that is concentrated in a specified place is mainly found in that place.