obround

O1B3R1O1U1N1D2

noun

A plane shape consisting of two semicircles connected by parallel lines tangent to their endpoints.

Similar
stadiumdiscorectangle
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Meanings

nounobround (plural obrounds)

plural obrounds

  1. geometryA plane shape consisting of two semicircles connected by parallel lines tangent to their endpoints.
  2. A feature or component with an obround shape.

    Four slugs of wrought boron containing stainless steel containing 1 and 2 wt % boron were prepared from 1 in. thick plate material as 1-1/8 in. dla. x 5 in. long obrounds and irradiated in the MTR reactor for a preliminary engineering check of […]

    1959, U.S. Atomic Energy Commission, Minutes of the seventh annual Atomic Energy Commission Welding Conference

Synonyms & antonyms

Similar
stadiumdiscorectangle

Origin

From ob- + round.

Full word history & related roots →

Rhymes & wordplay

Anagrams

bourdonNurobod
Cite this entry
APA

obround. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/obround

MLA

“obround.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/obround. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “obround,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/obround.

Source: obround on Wiktionary, CC BY-SA 4.0.