septic tank

[sep-tik tangk]

noun

1. a tank, often underground, in which organic sewage is decomposed and purified by anaerobic bacteria.

septic tank

noun

1. a tank, usually below ground, for containing sewage to be decomposed by anaerobic bacteria

Word History and Origins

Origin of septic tank¹

First recorded in 1900–05

Example Sentences

She’s renovating the property to bring it up to seismic and ADA standards, harden it against wildfires and install a septic tank for a guest house.

From Los Angeles Times

Even before the fire, few septic tanks and leach fields probably met current standards, which require substantially enhanced removal of pathogens.

From Los Angeles Times

A staffer from lead contractor ECC asks for important property details: Are there septic tank lids or propane tanks that need to be avoided?

From Los Angeles Times

The number does not account for septic tanks and ponds that may not have been spotted through aerial surveillance, Diaz said.

From Los Angeles Times

These included new treatment plants, along with schemes which would let owners of septic tanks and package treatment works ask for a connection to the mains sewer under certain conditions.

From BBC

Related Words

• cesspool 
• sewer