∂

See also: ə and Appendix:Variations of "d"

∂ U+2202, ∂ PARTIAL DIFFERENTIAL ← ∁ [U+2201] Mathematical Operators ∃ → [U+2203]

Translingual

Etymology

A stylized letter d.

Pronunciation

• (English) IPA^(key): /diː/, /dɛl/
  • (UK) IPA^(key): /dəʊ/
  • (US) IPA^(key): /doʊ/

Symbol

∂

1. (mathematics) partial differential
2. (mathematics) boundary of a manifold
3. (linguistics) presupposition of a sentence

See also

• д, which is sometimes italicized as "д", bearing similarity
• δ, delta