subatmospheric

adjective
sub·at·mo·spher·ic | \ˌsəb-ˌat-mə-ˈsfir-ik, -ˈsfer-\

Definition of subatmospheric 

: less or lower than that of the atmosphere subatmospheric pressure

First Known Use of subatmospheric

1874, in the meaning defined above

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The first known use of subatmospheric was in 1874

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More Definitions for subatmospheric

subatmospheric

adjective
sub·at·mo·spher·ic | \ˌsəb-ˌat-mə-ˈsfir-ik, -ˈsfer- \

Medical Definition of subatmospheric 

: less or lower than that of the atmosphere subatmospheric pressure

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