The meaning of OUTFALL is the outlet of a body of water (such as a river or lake); especially : the mouth of a drain or sewer.

An outfall is the discharge point of a storm drain or waste stream into a body of water. In the United Kingdom, the term may also apply to discharges from a "watercourse", which may be a river, stream …

The flow from one outfall is discharged to the stream without treatment. The feasibility studies found that submarine ocean outfalls would indeed solve the problem of beach pollution.

Jun 30, 2025 · A stormwater outfall is the point where a storm-drain system, whether pipes, ditches, or channels, discharges runoff to a receiving water such as a stream, wetland, lake, or the ocean.

OUTFALL definition: the outlet or place of discharge of a river, drain, sewer, etc. See examples of outfall used in a sentence.

Definition of outfall noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

There are four meanings listed in OED's entry for the noun outfall, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Sep 21, 2025 · Explore the definition of 'outfall,' its environmental significance, and its usage in different contexts. Understand how outfalls affect water systems and the importance of regulating them.

Outfall typically refers to the discharge point of water, whether it’s from a sewer, a storm drain, or a natural water source, where it exits into another body of water such as an ocean, lake, or river.

outfall in American English (ˈautˌfɔl) noun the outlet or place of discharge of a river, drain, sewer, etc