septic
- 01 B2 Upper Intermediate
adj.describes a wound or part of the body that has become infected with bacteria and is producing pus.
adj.pertaining to or caused by sepsis; infected with microorganisms that cause the decay of tissue.
Simple“If you don't clean that cut properly, it might go septic and require antibiotics.”
In context“The patient was rushed to surgery after the wound became septic, threatening to release toxins into the bloodstream and cause organ failure.”
UsageOften used with the verb 'to go' (e.g., 'the wound went septic').
- 02 B2 Upper Intermediate
adj.related to a system that uses bacteria to break down human waste from a house.
adj.relating to the disposal and bacterial decomposition of sewage.
Simple“Houses in the countryside often have a septic tank instead of being connected to city pipes.”
In context“The property survey revealed that the septic system was outdated and required a complete overhaul to meet modern environmental standards.”
UsageAlmost exclusively used in the compound noun 'septic tank' or 'septic system'.
- 03 C1 Advanced
n.a slang word for an American person, used mainly in the UK and Australia.
n.a derogatory term for an American, derived from Cockney rhyming slang ('septic tank' rhymes with 'Yank').
Simple“He didn't realize that calling someone a septic might be seen as an insult.”
In context“The local pub was full of septics who had wandered over from the nearby military base during their weekend leave.”
Teacher's tipThis is rhyming slang and can be offensive; learners should be aware of it but avoid using it in polite or formal company.
Synonyms - 04 C2 Proficiency
adj.describes something in mathematics that involves the number seven.
adj.relating to the seventh degree or order, such as a polynomial equation where the highest exponent is seven.
Simple“The professor explained how to solve a septic equation in the advanced algebra class.”
In context“The researcher published a paper on the geometric properties of septic curves in higher-dimensional spaces.”
UsageUsed as a non-gradable adjective in specialized mathematical discourse.
From Ancient Greek σηπτικός (sēptikós, “characterized by putridity”), from σηπτός (sēptós), from σήπω (sḗpō).
From Latin septem (“seven”) + -ic.
Short form of Cockney rhyming slang septic tank (“Yank”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.