1. infected with harmful bacteria
Usage: medical
2. relating to or caused by sepsis
Usage: medical

1. a septic tank
Usage: informal

Examples

• The wound became septic after being left untreated.
• She developed septic shock from the infection.
• The septic patient required immediate antibiotic treatment.
• They need to pump out their septic every few years.
• The septic system backed up during the heavy rains.
• His septic finger required surgical drainage.