e·co·sphere 
(ēkō-sfîr′, ĕkō-)
(ēkō-sfîr′, ĕkō-)n.
The regions of the universe, especially on the earth, that are capable of supporting life; the biosphere.
- indigotin
- indinavir
- Indira Priyadarshini
- indirect
- indirect evidence
- indirect free kick
- indirection
- indirect lighting
- indirectly
- indirectness
- indirect object
- indirect tax
- indiscernible
- indiscernibly
- indiscipline
- indisciplined
- indiscreet
- indiscreetly
- indiscreetness
- indiscrete
- indiscretion
- indiscriminate
- indiscriminately
- indiscriminateness
- indiscriminating