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rhomboid

noun, adjective

rhomboid is a noun meaning “A parallelogram which is neither a rhombus nor a rectangle” (English Wiktionary, September 2026). It is spelled R-H-O-M-B-O-I-D, and it appears about once in every 12 million words in written English (wordfreq, 2021 data). The plural of rhomboid is rhomboids.

What does rhomboid mean?

noun

  1. 1

    A parallelogram which is neither a rhombus nor a rectangle.

    Meronyms: angle, side; see also Thesaurus:polygon

  2. 2

    Any of several muscles that control the shoulders.

  3. 3

    A solid shape which has rhombic faces.

adjective

  1. 1

    resembling, or shaped like a rhombus or rhomboid

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of rhomboid

  • rhomboids plural
  • rhomboides

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is rhomboid?

Rhomboid appears about once in every 12 million words in written English, the 105,204th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Rhomboid in Spanish, French, German and Portuguese

LanguageWords
GermanRhomboid, Rautling (parallelogram which is neither a rhombus nor a…), Rautenmuskel, Rhomboidmuskel (muscles)
Portugueseromboide (parallelogram which is neither a rhombus nor a…)

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.