trigonal


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Related to trigonal: monoclinic, rhombohedral

tri·go·nal

 (trī-gō′nəl)
adj. Mineralogy
Rhombohedral.

[Earlier, relating to a trigon or triplicity, relating to three angles : Latin trigōnum, triangle; see trigon + -al.]

trigonal

(ˈtrɪɡənəl)
adj
1. (Mathematics) another word for triangular1
2. (Chemistry) Also: rhombohedral relating or belonging to the crystal system characterized by three equal axes that are equally inclined and not perpendicular to each other

trig•o•nal

(ˈtrɪg ə nl)

adj.
1. of, pertaining to, or shaped like a triangle; having three angles; triangular.
2. (of a crystal) having threefold symmetry.
[1560–70]
trig′o•nal•ly, adv.

tri·go·nal

(trī-gō′nəl)
Relating to a crystal having three axes of equal length intersecting at oblique angles. This crystal system is considered a subset of the hexagonal system. The mineral quartz has trigonal crystals. Also called rhombohedral. See more at crystal.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.trigonal - having threefold symmetry
crystallography - the branch of science that studies the formation and structure of crystals
symmetric, symmetrical - having similarity in size, shape, and relative position of corresponding parts
References in periodicals archive ?
Metals bind to MT in metal-thiolate complexes exhibiting tetrahedral (cadmium, zinc) or trigonal (copper) geometry.
Abdominal ultrasonography revealed a trigonal bladder mass of 10x10 mm with secondary urinary retention of 700 cc without upper urinary tract dilatation.
The presence of calcium carbonate was identified in the calcite form of calcium carbonate belong to trigonal phase (JCPDS: 86-2334).
With N-and/or O-donor ligands, copper forms variety of mononuclear to polynuclear complexes adopting different geometries like square planar, distorted square planar, trigonal pyramidal, square pyramidal and distorted octahedral [4].
Use of trigonal block anecdotally before hydrodistention is known to be more effective than hydrodistention alone.
In case of this publication the connection element will be further denoted as trigonal link (cf also Figure 2 and Figure 4).
Additionally, according to information from the research team, the pigment has a crystal structure in which the chromophore that produces its intense blue is in a trigonal bipyramidal site, which means that the color can be tuned by adjusting the ratio of indium to magnesium.
Symmetry between S and R blocks symmetry breaks due to trigonal bipyramidal 2b site.
However, further research proved that silicon atoms were at the center of a tetrahedron, each nitrogen in trigonal and approximately planar coordination by three silicon (Figure 1b) [22].
3] ICSD code 073446 032100 Crystal system Trigonal Orthorhombic Bravais lattice Rhombohedral Primitive Space group [D.
Objective measures of the degree of hydrocephalus necessitate close follow-up with trigonal measurements in the identical plane.
Opposite pair and trigonal pair compensation solution for a single BS was analyzed in [9], but traffic distribution and compensation method are ideal.