Definitions

1. noun

the region of the atmosphere extending from the surface of the Earth to an altitude of about 10 kilometers (6.2 miles) where the majority of atmospheric gases are found

“The entosphere is where most of the Earth’s weather patterns occur.”

2. noun

the biosphere in terms of the atmosphere as a whole, encompassing all living organisms and their interactions with the atmosphere

“The entosphere is a delicate balance between human activities and the natural world.”