valve

/ˈvælv/noun
Middle School
1

A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.

2

Such a device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit.

3

One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction.

4

One of the leaves of a folding door or of a window sash.

5

A vacuum tube.

6

One of the pieces into which certain fruits naturally separate when they dehisce.

7

A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry.

8

One of the pieces or divisions of bivalve or multivalve shells.

9

One of the two similar portions of the shell of a diatom.

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Synonyms

Sound Patterns & Rhymes

Alliteration

Words starting with the same consonant sound — used in poetry and prose to create rhythm, emphasis, and memorable phrasing (e.g. “Peter Piper picked”)

Assonance

Words sharing similar vowel sounds regardless of starting letter — creates internal melody in writing

Consonance

Words sharing similar consonant sound patterns — adds texture and cohesion to writing

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