F region
noun
: the highest region of the ionosphere occurring from 80 miles (130 kilometers) to more than 300 miles (500 kilometers)
Word History
First Known Use
1923, in the meaning defined above
- tear
- tear (out)
- tear (someone or something) to pieces/shreds
- tear (someone) limb from limb
- tear (someone) off a strip
- tear apart
- tear around
- tear at
- tear bag
- tear bomb
- tear bottle
- tear down
- tear fault
- tear gas
- tear gassed
- tear gasses
- tear gassing
- tear grass
- tear into
- tear it
- tear limb from limb
- tear off a strip
- tear one's hair
- tear one's hair out
- tear oneself free