bi·o·ce·nol·o·gy 
(bī′ō-sə-nŏlə-jē)
(bī′ō-sə-nŏlə-jē)n.
Ecology
Ecology
The study of communities in nature and of interactions among their members.
- extraverted
- extra-virgin olive oil
- extremal
- extreme
- extremely
- extremely high frequency
- extremely low frequency
- extremeness
- extreme unction
- extremism
- extremist
- extremity
- extremophile
- extremum
- extricable
- extricate
- extrication
- extrinsic
- extrinsically
- extrinsic factor
- extro-
- extro-
- extrorse
- extroversion
- extroversive