Presheath
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A region in advance of a sheath
"Instead, a long presheath region extends into the plasma where electrons are accelerated via a pressure gradient to a flow speed exceeding the electron thermal speed at the sheath edge."
Example
More examples"Instead, a long presheath region extends into the plasma where electrons are accelerated via a pressure gradient to a flow speed exceeding the electron thermal speed at the sheath edge."
Etymology
From pre- + sheath.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.