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rhomboid

rhomboid

1 8.9
A four-sided flat shape with slanted sides where opposite sides are equal
  • noun
  • /ˈrɑːmˌbɔɪd/
  • Specialized
translation icon : romboide
  • Odd-shaped windows admitted triangles and rhomboids of sunlight that tantalized the cats by moving throughout the day.

Examples

  • In the daytime, a flood of light came through triangles and rhomboids of glass.

    Fiction book (2000)
  • Don't you idiots know what a rhomboid is?

    Fiction book (1999)
  • But of course, it was one of the miracles of that particular summer that nobody ever figured out what a rhomboid was.

    Fiction book (1999)
  • "It's a rhomboid, for Christ's sake!

    Fiction book (1999)
  • Seen from that perspective, it looked huge to Caroline, a distorted rhomboid in a photograph.

    Fiction book (1996)
  • This is a rhomboid.

    Fiction book (1999)
  • Within moments, he had pawed the rhomboid completely out of existence - both metaphorically and literally.

    Fiction book (1999)
  • The cab draws up before a rain-stained tumble of concrete tank traps, huge rhomboids streaked with rust, covered with the stylized initials of forgotten lovers.

    Fiction book (2000)
  • The architect designed the building with large rhomboids incorporated into the exterior facade for a unique look.

  • In geometry class, we learned that a rhomboid has opposite sides that are equal in length and oblique angles.

Compounds

8.0

A muscle in the upper back under the trapezius that pulls the shoulder blade toward the spine and slightly up

7.4

A muscle in the upper back that pulls the shoulder blade toward the spine

rhomboid minor muscle
  • Specialized
6.1

A small upper back muscle that pulls the shoulder blade toward the spine and slightly up

rhomboid muscle
  • Specialized
6.6

A muscle in the upper back between the spine and shoulder blade that helps move and hold it

Surface Forms

rhomboid singular
rhomboids plural

Morphology

rhomboid = rhombus (semi-transparent) = rhombo + oid

Formed from the rhomb(‑) root plus the suffix '-oid' meaning 'like' or 'in the shape of', but precise geometric distinctions (rhombus vs rhomboid) and the suffix '-oid' may be unfamiliar to average learners.

Etymology

Rhomboid comes from the Greek word rhombos, which meant a 'spinning top' and later a 'diamond shape', so a rhomboid is a slanted four-sided figure like a stretched diamond.