Standard Lemma guide

septic

adj · noun · 12 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Australian: /ˈsep.tɪ̝k/
  • Australian: [ˈsep.thɪ̝k]
  • Recorded audio is listed in the source snapshot.
  • General-American, Received-Pronunciation: /ˈsɛp.tɪk/
  • General-American, Received-Pronunciation: [ˈsɛp.thɪk]
  • Recorded audio is listed in the source snapshot.
  • CMU ARPABET: S EH1 P T IH0 K Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of or pertaining to sepsis.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Causing sepsis or putrefaction.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Of or pertaining to sewage or the disposal of sewage.

Definition source: English Wiktionary via Wiktextract

Examples

  • septic tank
  • a septic system

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Of the seventh degree or order.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A substance that causes sepsis or putrefaction.

Definition source: English Wiktionary via Wiktextract

Examples

  • 1750, John Pringle, Further Experiments on Substances Resisting Putrefaction, in 1809, Charles Hutton, George Shaw, Richard Pearson (editors), The Philosophical Transactions of the Royal Society of London, Volume X: 1750—1755, page 86, But, in the prosecution of this subject, he had met with very few real septics; and found many substances, commonly accounted such, of a quite opposite nature.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A person who has sepsis.

Definition source: English Wiktionary via Wiktextract

Usage: dated

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A septic tank; a system for the disposal of sewage into a septic tank, a septic system.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A mathematical object (function, curve, surface, etc.) of degree seven.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

An American, a Yank.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, New-Zealand, UK, ethnic, slang, slur

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

Alternative form of septic; an American.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, Cockney, New-Zealand, UK, alt-of, alternative, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective

Meaning 11

containing or resulting from disease-causing organisms

Definition source: Princeton WordNet 3.0

Examples

  • a septic sore throat
  • a septic environment
  • septic sewage

Meaning relationships

Synonyms: infected

Antonyms: antiseptic

12

adjective

Meaning 12

of or relating to or caused by putrefaction

Definition source: Princeton WordNet 3.0

Examples

  • the septic action occurs at the bottom of the septic tank

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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”).

Short form of Australian rhyming slang septic tank (“Yank”).

Across languages

Translations

27 source translations are retained for this English entry.

  • Bulgarian: септичен (septičen) — of or pertaining to sepsis
  • Catalan: sèptic — of or pertaining to sepsis
  • Danish: septisk — of or pertaining to sepsis
  • Esperanto: sepsa — of or pertaining to sepsis
  • French: septique — of or pertaining to sepsis
  • Galician: séptico — of or pertaining to sepsis
  • German: septisch — of or pertaining to sepsis
  • Greek: σηπτικός (siptikós) — of or pertaining to sepsis
  • Ancient Greek: σηπτικός (sēptikós) — of or pertaining to sepsis
  • Indonesian: septik — of or pertaining to sepsis
  • Irish: seipteach — of or pertaining to sepsis
  • Italian: settico — of or pertaining to sepsis
  • Latin: sēpticus — of or pertaining to sepsis
  • Māori: ero — of or pertaining to sepsis
  • Norwegian Bokmål: septisk — of or pertaining to sepsis
  • Norwegian Nynorsk: septisk — of or pertaining to sepsis
  • Portuguese: séptico — of or pertaining to sepsis
  • Portuguese: sético — of or pertaining to sepsis
  • Spanish: séptico — of or pertaining to sepsis
  • Swedish: septisk — of or pertaining to sepsis
  • Welsh: septig — of or pertaining to sepsis
  • Bulgarian: септичен (septičen) — causing sepsis
  • Catalan: sèptic — causing sepsis
  • Indonesian: septik — causing sepsis
  • Irish: seipteach — causing sepsis
  • Polish: septyczny — causing sepsis
  • Spanish: séptico — causing sepsis