endotoxin
Medical term for a toxin released from the outer membrane of certain bacteria, often contrasted with 外毒素 (exotoxin).
See also: エンドトキシン
Endotoxins are present in the cell walls of Gram-negative bacteria.
Compound of 内 (nai, 'inside') and 毒素 (dokuso, 'toxin'), calque of English 'endotoxin'.