Definition of nabla in English:

nabla

noun

Mathematics
  • Del.

Origin

Late 19th century; earliest use found in William R. Smith (1846–1894), theologian and Semitic scholar. From Hellenistic Greek νάβλα Phoenician harp. This word was applied to the operator because of the similarity between the assumed shape of the musical instrument and the symbol used.

Pronunciation

nabla

/ˈnablə/