[rom-buh-hee-druh n] /ˌrɒm bəˈhi drən/
noun, plural rhombohedrons, rhombohedra
[rom-buh-hee-druh] /ˌrɒm bəˈhi drə/ (Show IPA)
a solid bounded by six rhombic planes.
a six-sided prism whose sides are parallelograms
Plural rhombohedrons or rhombohedra
A prism with six faces, each a rhombus.
noun 1. an oblique-angled parallelogram with only the opposite sides equal. 2. Anatomy. rhomboideus. adjective 3. Also, rhomboidal. having a form like or similar to that of a rhombus; shaped like a rhomboid. noun 1. a parallelogram having adjacent sides of unequal length adjective 2. having such a shape rhomboid rhom·boid (rŏm’boid’) or rhom·boi·dal (rŏm-boid’l) […]
- Rhomboidal sinus
rhomboidal sinus n. A dilation of the central canal of the spinal cord in the lumbar region. Also called rhombocele.
noun, plural rhomboidei [rom-boi-dee-ahy] /rɒmˈbɔɪ diˌaɪ/ (Show IPA). Anatomy. 1. either of two back muscles that function to move the scapula. noun (pl) -dei (-dɪˌaɪ) 1. (anatomy) either of two muscles that connect the spinal vertebrae to the scapulae
- Rhomboid fossa
rhomboid fossa n. The floor of the fourth ventricle of the brain, formed by the ventricular surface of the rhombencephalon.