1. Cold; severely chilled or chilling.
2. Characterized by hykpothermia, clammy skin, and prostration.

A reference to certain severe conditions or stages of a disease; such as, algid malaria.

3. Not related to Greek algein, “to feel pain”. It means “cold, chilly;” from Latin algere, “to be cold”.

Falciparum malaria with gastrointestinal manifestations predominating, characterized by cold, clammy skin, and hypotension.

Falciparum malaria is characterized by paroxysms of fever occurring at irregular intervals and often by the localization of the organism in a specific organ, causing capillary blockage in the brain, lungs, intestinal mucosa, spleen, and kidneys.

A condition occurring in cholera, falciparum malaria, and other diseases marked by extensive intestinal discharges; characterized by subnormal temperature, feeble flickering pulse, hypotension, and various neurologic symptoms.