(British) A diminutive of the male given name Derek.
Abbreviation of Delaware.
Abbreviation of Delete (“key of a computer keyboard that deletes text, files, etc.”).
(mathematical analysis) The symbol ∇ used to denote the gradient operator.
(mathematics) the symbol ∂, in the context of a partial differential
(obsolete) a part, portion
Abbreviation of delegate.
Abbreviation of delegation.
Abbreviation of delete.
abbreviation of delineavit as seen on published artwork, identifying the original artist. Commonly seen in books and articles on topics in natural history