English Explanatory Dictionary

Armstrong line

English dictionary entry

Meanings

name
  1. The altitude above sea level at which water boils without a pressurized environment, and at which a person would require a pressure suit or pressurized environment to survive, and avoid having their bodily fluids boil away.

Word forms

Armstrong line Armstrong's line

Etymology

Named after Harry George Armstrong (1899–1983), who determined this limit.

Synonyms

Armstrong's line Armstrong limit
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