valve
A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.
Such a device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit.
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.
One of the leaves of a folding door or of a window sash.
A vacuum tube.
One of the pieces into which certain fruits naturally separate when they dehisce.
A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry.
One of the pieces or divisions of bivalve or multivalve shells.
One of the two similar portions of the shell of a diatom.
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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
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