(medicine) Cold, chilly; used of low body temperature, especially in connection with certain diseases such as malaria and cholera.
algid malaria
1875 March 15, J. C. Morgan, More on Typho-Malarial Fever, United States Medical Investigator, New Series, Volume 1, No. 6, page 261,
[…] with cold sweat, blueness, stupidity, no heat, no sort of reaction or remission, intense venous congestion in divers organs, getting steadily worse and worse, more and more algid, wet, and stupid, with death in thirty-six hours.