contaminant
noun/kənˈtæmɪnənt/
Frequency rank: #18,346 most common English word
Meaning
A substance that makes something impure or unsafe by being present in it.

Example sentence
The water supply was tested for every possible contaminant before being approved for public use.
Synonyms & related words
Practice this word in the quiz
More words in ranks 18,301–18,400
- childbearingThe process of carrying and giving birth to children.
- clamora loud and confused noise, or a strong public demand.
- classlessHaving no social classes or distinctions based on class.
- clinkA sharp, light ringing sound made by the collision of glass or metal objects.
- cognaterelated in origin; descended from the same ancestral language form.
- contritionA feeling of sincere remorse or guilt for having done wrong.
- correlatingestablishing a mutual relationship or connection between two or more things.
- counterclockwiseIn the direction opposite to the way clock hands move.
- crevicea narrow crack or opening in a hard surface such as rock or a wall.
- crewmana member of a ship's, aircraft's, or spacecraft's crew