Definition of del in English:

del

Syllabification: del

noun

Mathematics
An operator used in vector analysis. (Symbol: ).

Origin

early 20th century: abbreviation of delta1, from the representation of the operator as an inverted capital delta.

Definition of del in:

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
adjective
turned backwards