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del

Pronunciation: /dɛl/

The English word “del” has 3 meanings listed here.

noun

  1. The symbol ∇ used to denote the gradient operator.
  2. the symbol ∂, in the context of a partial differential
  3. a part, portion

Etymology

From delta, the symbol being an inverted delta.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.