tristetrahedronn.
/ˌtrɪstɛtrəˈhiːdrɔːn//ˌtrɪstɛtrəˈhɛdrən/ Geometry and Crystallography.
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A solid figure having 12 faces, every three of which correspond to one face of the tetrahedron: either with triangular faces (= triakistetrahedron at triakis- comb. form), or with trapezoidal faces. (Cf. trisoctahedron n.) (In recent dictionaries.)
This entry has not yet been fully updated (first published 1915; most recently modified version published online September 2018).
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n.1915- to put yorkshire on one
- to put your heads together
- to put, drive, reduce, etc to the last shifts
- to put, etc, under the spear
- to put, lay, lay down or set a thing at stake or at the stake
- to put, lay, lay down or set at stake or at the stake
- to put, or speak with, one's tongue in one's cheek
- to put, set an edge upon
- to put, set an esteem, a high, low esteem upon
- to put, set esteem, a high, low esteem upon
- to put, set etc store upon
- to put, set great store upon
- to put, set one's shoulder to
- to put, set or lay by
- to put, set store upon
- to put, set upon the full stretch
- to put, set upon the stretch
- to put, set, place, etc on the rack
- to put, set, strain, stretch on the tenterhooks
- to put, set, stretch, etc on tenter(s
- to put, set, stretch, etc on the tenter(s
- to puzzle one's brain
- to puzzle one's brains
- to puzzle out
- to quack titles