English Reference

Word

fecal

Phoneticsfe·cal

/ˈfikəɫ/

UK spelling · faecal

Definition

adj. relating to solid waste that leaves the body after food is digested. It is a medical or scientific word for things connected to poop.

adj. relating to, consisting of, or contained in feces. Typically used in medical, biological, or forensic contexts to describe waste matter or contamination.

Examples

“The doctor requested a fecal sample for the lab test.”

“The city issued a warning after high levels of fecal bacteria were discovered in the local river after the storm.”

“Environmental scientists use fecal markers to track the migration patterns of elusive mammals without needing to capture or disturb the animals in their natural habitat.”

Examples

simple

“The doctor requested a fecal sample for the lab test.”

contextual

“The city issued a warning after high levels of fecal bacteria were discovered in the local river after the storm.”

complex

“Environmental scientists use fecal markers to track the migration patterns of elusive mammals without needing to capture or disturb the animals in their natural habitat.”

Usage

Typically used in technical or clinical contexts; precedes the noun it modifies.

Pitfall

the fecal of the animal

the feces of the animal

Fecal is an adjective and must modify a noun; the noun form for the waste itself is feces.

Real-World Examples

“Wietrzyk won the fitness race but not before using communal equipment with faecal matter visibly running down her legs – and muddying Hyrox’s reputation.”
The Guardian · 18 Sept 2026
“Alternatively, fecal samples can be collected before and after a stressful event.”
Phys.org · 16 Sept 2026

Etymology

From Middle French fecal, from Latin faex, equivalent to feces + -al.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

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