Solution

EMISSION

3 clues

Car exhaust

Word class: Common noun
Nature of clue: Description
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Science, Vehicles - Transportation

Discharge

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Science

Other solutions to Discharge

Tailpipe output

Word class: Common noun
Nature of clue: Description
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Science, Vehicles - Transportation

Words are categorized by artificial intelligence: there can be mistakes.