hyperacute

adjective
hy·per·acute | \ˌhī-pər-ə-ˈkyüt \
variants: or hyper-acute

Definition of hyperacute 

: extremely or excessively acute a hyperacute sensitivity to light …the problem of hyperacute rejection—a violent immune response that can destroy a transplanted organ in minutes…— Arlene Judith Klotzko

First Known Use of hyperacute

1823, in the meaning defined above

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The first known use of hyperacute was in 1823

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hyperacute

adjective
hy·per·acute | \ˌhī-pə-rə-ˈkyüt \

Medical Definition of hyperacute 

: extremely or excessively acute hyperacute hearing And the problem of hyperacute rejection—a violent immune response that can destroy a transplanted organ in minutes—seems to have been solved for pig organs.— Arlene Judith Klotzko, Scientific American, November 1999

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