Definition of trigonal in English:

trigonal

adjective ˈtrɪɡ(ə)n(ə)lˈtrɪɡənl

1Triangular.
square or trigonal double-sided inserts
Example sentencesExamples
- The lateral profile is trigonal, and the posterior rostral face convex.
- The trigonal planar arrangement of the groups around the carbonyl carbon atom enables the carbon atom to be relatively open to attack from above, or below.
- Rhodochrosite crystallizes in the trigonal class of the hexagonal system and occurs in a number of diverse forms.
- Pezzottaite is trigonal, whereas the other members of the beryl group are hexagonal.
- Its morphology is either hexagonal or trigonal.
1. 1.1Biology Triangular in cross section.
  large trigonal shells
  Example sentencesExamples
  The triangular habit suggested trigonal symmetry and a possible identification as hilairite or a contact-twinned form of gaidonnayite.
  The auricles in early ontogeny are relatively large and distinctly trigonal, with their free margins meeting the hinge line at acute angles.
  At the same time, however, it has been reported that the zeta line is constructed to position a thick filament at the trigonal point of the three thin filaments in the opposite sarcomere.
  In this case, the c-axis, or axis of trigonal symmetry, is vertical with respect to the organic substrate and hence to the wall itself.
2. 1.2 Of or denoting a crystal system or three-dimensional geometrical arrangement having three equal axes separated by equal angles that are not right angles.
  Example sentencesExamples
  Upon compression, a cholesterol film transforms from a monolayer of trigonal symmetry and low crystallinity to a trilayer, composed of a highly crystalline bilayer in a rectangular lattice and a disordered top cholesterol layer.
  The models explain the trigonal pyramidal shape of fibroblast growth factor and provide a basis for interpretation of protein crystal structures.
  These are, in order of decreasing symmetry, the cubic, hexagonal, tetragonal, trigonal, orthorhombic, monoclinic, and triclinic systems.
  Numerous examples can be found, from trigonal hillocks on diamonds to pits and highly irregular surfaces on crystals that we are accustomed to seeing in simple planar forms.
  Such a planar molecule is termed a trigonal planar molecule.
  In an associative transition state a penta-coordinated phosphorus atom would be formed, in a dissociative transition a trigonal metaphosphate.
  After fusion, the branches relaxed to a configuration connected by trigonal vertices with 120° angles between branches to minimize the local energy.
  The second morphotype which comprises all illustrated paratypes, bears an outer cyst surface with trigonal pointed crystal tips.
  Urinary urgency occurs as a result of trigonal or posterior urethral irritation caused by inflammation, stones, or tumor and is common with cystitis.
  Simple binuclear and trinuclear complexes form linear and trigonal arrangements but a tetranuclear complex can occur as a tetrahedron or a cubane structure.
  Hexagonal crystals (such as aquamarine and emerald) are useful in defining our goals and successes, whilst trigonal crystal systems (ie tourmaline and amethyst) help us to focus on simplicity.
  The broad Bragg peak arises from a cholesterol monolayer embodying poorly ordered two-dimensional crystalline domains, each containing ~ 200 molecules in a proposed trigonal arrangement.
  When the cysteine substrate is bound the geometry changes to a trigonal bipyramid, in which the substrate and the glutamic acid occupy the apical positions.

Derivatives

trigonally

adverb

This implies that the triad axes exist in the centers of the rings, and hence they are distorted trigonally as in the hexagonal SrAl2O4.
Example sentencesExamples
- The alkene carbon-carbon double bond is made from two sp trigonally hybridized carbons.
- For the first time, the coordination geometries hexagonal planar and trigonally monocapped trigonal-prismatic are seen.
- The structure of the unit is a trigonally planar one in RTP.

Origin

Late 16th century: from medieval Latin trigonalis, from Latin trigonum (see trigon).

Definition of trigonal in US English:

trigonal

adjectiveˈtrɪɡənlˈtriɡənl

1Triangular.
square or trigonal double-sided inserts
Example sentencesExamples
- Its morphology is either hexagonal or trigonal.
- The lateral profile is trigonal, and the posterior rostral face convex.
- Pezzottaite is trigonal, whereas the other members of the beryl group are hexagonal.
- Rhodochrosite crystallizes in the trigonal class of the hexagonal system and occurs in a number of diverse forms.
- The trigonal planar arrangement of the groups around the carbonyl carbon atom enables the carbon atom to be relatively open to attack from above, or below.
1. 1.1Biology Triangular in cross section.
  large trigonal shells
  Example sentencesExamples
  The triangular habit suggested trigonal symmetry and a possible identification as hilairite or a contact-twinned form of gaidonnayite.
  In this case, the c-axis, or axis of trigonal symmetry, is vertical with respect to the organic substrate and hence to the wall itself.
  The auricles in early ontogeny are relatively large and distinctly trigonal, with their free margins meeting the hinge line at acute angles.
  At the same time, however, it has been reported that the zeta line is constructed to position a thick filament at the trigonal point of the three thin filaments in the opposite sarcomere.
2. 1.2 Of or denoting a crystal system or three-dimensional geometric arrangement having three equal axes separated by equal angles that are not right angles.
  Example sentencesExamples
  When the cysteine substrate is bound the geometry changes to a trigonal bipyramid, in which the substrate and the glutamic acid occupy the apical positions.
  The second morphotype which comprises all illustrated paratypes, bears an outer cyst surface with trigonal pointed crystal tips.
  Hexagonal crystals (such as aquamarine and emerald) are useful in defining our goals and successes, whilst trigonal crystal systems (ie tourmaline and amethyst) help us to focus on simplicity.
  Urinary urgency occurs as a result of trigonal or posterior urethral irritation caused by inflammation, stones, or tumor and is common with cystitis.
  The models explain the trigonal pyramidal shape of fibroblast growth factor and provide a basis for interpretation of protein crystal structures.
  The broad Bragg peak arises from a cholesterol monolayer embodying poorly ordered two-dimensional crystalline domains, each containing ~ 200 molecules in a proposed trigonal arrangement.
  Such a planar molecule is termed a trigonal planar molecule.
  After fusion, the branches relaxed to a configuration connected by trigonal vertices with 120° angles between branches to minimize the local energy.
  Simple binuclear and trinuclear complexes form linear and trigonal arrangements but a tetranuclear complex can occur as a tetrahedron or a cubane structure.
  In an associative transition state a penta-coordinated phosphorus atom would be formed, in a dissociative transition a trigonal metaphosphate.
  Upon compression, a cholesterol film transforms from a monolayer of trigonal symmetry and low crystallinity to a trilayer, composed of a highly crystalline bilayer in a rectangular lattice and a disordered top cholesterol layer.
  Numerous examples can be found, from trigonal hillocks on diamonds to pits and highly irregular surfaces on crystals that we are accustomed to seeing in simple planar forms.
  These are, in order of decreasing symmetry, the cubic, hexagonal, tetragonal, trigonal, orthorhombic, monoclinic, and triclinic systems.

Origin

Late 16th century: from medieval Latin trigonalis, from Latin trigonum (see trigon).

单词	trigonal
释义	Definition of trigonal in English: trigonal adjective ˈtrɪɡ(ə)n(ə)lˈtrɪɡənl 1Triangular. square or trigonal double-sided inserts Example sentencesExamples The lateral profile is trigonal, and the posterior rostral face convex. The trigonal planar arrangement of the groups around the carbonyl carbon atom enables the carbon atom to be relatively open to attack from above, or below. Rhodochrosite crystallizes in the trigonal class of the hexagonal system and occurs in a number of diverse forms. Pezzottaite is trigonal, whereas the other members of the beryl group are hexagonal. Its morphology is either hexagonal or trigonal. 1.1Biology Triangular in cross section. large trigonal shells Example sentencesExamples The triangular habit suggested trigonal symmetry and a possible identification as hilairite or a contact-twinned form of gaidonnayite. The auricles in early ontogeny are relatively large and distinctly trigonal, with their free margins meeting the hinge line at acute angles. At the same time, however, it has been reported that the zeta line is constructed to position a thick filament at the trigonal point of the three thin filaments in the opposite sarcomere. In this case, the c-axis, or axis of trigonal symmetry, is vertical with respect to the organic substrate and hence to the wall itself. 1.2 Of or denoting a crystal system or three-dimensional geometrical arrangement having three equal axes separated by equal angles that are not right angles. Example sentencesExamples Upon compression, a cholesterol film transforms from a monolayer of trigonal symmetry and low crystallinity to a trilayer, composed of a highly crystalline bilayer in a rectangular lattice and a disordered top cholesterol layer. The models explain the trigonal pyramidal shape of fibroblast growth factor and provide a basis for interpretation of protein crystal structures. These are, in order of decreasing symmetry, the cubic, hexagonal, tetragonal, trigonal, orthorhombic, monoclinic, and triclinic systems. Numerous examples can be found, from trigonal hillocks on diamonds to pits and highly irregular surfaces on crystals that we are accustomed to seeing in simple planar forms. Such a planar molecule is termed a trigonal planar molecule. In an associative transition state a penta-coordinated phosphorus atom would be formed, in a dissociative transition a trigonal metaphosphate. After fusion, the branches relaxed to a configuration connected by trigonal vertices with 120° angles between branches to minimize the local energy. The second morphotype which comprises all illustrated paratypes, bears an outer cyst surface with trigonal pointed crystal tips. Urinary urgency occurs as a result of trigonal or posterior urethral irritation caused by inflammation, stones, or tumor and is common with cystitis. Simple binuclear and trinuclear complexes form linear and trigonal arrangements but a tetranuclear complex can occur as a tetrahedron or a cubane structure. Hexagonal crystals (such as aquamarine and emerald) are useful in defining our goals and successes, whilst trigonal crystal systems (ie tourmaline and amethyst) help us to focus on simplicity. The broad Bragg peak arises from a cholesterol monolayer embodying poorly ordered two-dimensional crystalline domains, each containing ~ 200 molecules in a proposed trigonal arrangement. When the cysteine substrate is bound the geometry changes to a trigonal bipyramid, in which the substrate and the glutamic acid occupy the apical positions. Derivatives trigonally adverb This implies that the triad axes exist in the centers of the rings, and hence they are distorted trigonally as in the hexagonal SrAl2O4. Example sentencesExamples The alkene carbon-carbon double bond is made from two sp trigonally hybridized carbons. For the first time, the coordination geometries hexagonal planar and trigonally monocapped trigonal-prismatic are seen. The structure of the unit is a trigonally planar one in RTP. Origin Late 16th century: from medieval Latin trigonalis, from Latin trigonum (see trigon). Definition of trigonal in US English: trigonal adjectiveˈtrɪɡənlˈtriɡənl 1Triangular. square or trigonal double-sided inserts Example sentencesExamples Its morphology is either hexagonal or trigonal. The lateral profile is trigonal, and the posterior rostral face convex. Pezzottaite is trigonal, whereas the other members of the beryl group are hexagonal. Rhodochrosite crystallizes in the trigonal class of the hexagonal system and occurs in a number of diverse forms. The trigonal planar arrangement of the groups around the carbonyl carbon atom enables the carbon atom to be relatively open to attack from above, or below. 1.1Biology Triangular in cross section. large trigonal shells Example sentencesExamples The triangular habit suggested trigonal symmetry and a possible identification as hilairite or a contact-twinned form of gaidonnayite. In this case, the c-axis, or axis of trigonal symmetry, is vertical with respect to the organic substrate and hence to the wall itself. The auricles in early ontogeny are relatively large and distinctly trigonal, with their free margins meeting the hinge line at acute angles. At the same time, however, it has been reported that the zeta line is constructed to position a thick filament at the trigonal point of the three thin filaments in the opposite sarcomere. 1.2 Of or denoting a crystal system or three-dimensional geometric arrangement having three equal axes separated by equal angles that are not right angles. Example sentencesExamples When the cysteine substrate is bound the geometry changes to a trigonal bipyramid, in which the substrate and the glutamic acid occupy the apical positions. The second morphotype which comprises all illustrated paratypes, bears an outer cyst surface with trigonal pointed crystal tips. Hexagonal crystals (such as aquamarine and emerald) are useful in defining our goals and successes, whilst trigonal crystal systems (ie tourmaline and amethyst) help us to focus on simplicity. Urinary urgency occurs as a result of trigonal or posterior urethral irritation caused by inflammation, stones, or tumor and is common with cystitis. The models explain the trigonal pyramidal shape of fibroblast growth factor and provide a basis for interpretation of protein crystal structures. The broad Bragg peak arises from a cholesterol monolayer embodying poorly ordered two-dimensional crystalline domains, each containing ~ 200 molecules in a proposed trigonal arrangement. Such a planar molecule is termed a trigonal planar molecule. After fusion, the branches relaxed to a configuration connected by trigonal vertices with 120° angles between branches to minimize the local energy. Simple binuclear and trinuclear complexes form linear and trigonal arrangements but a tetranuclear complex can occur as a tetrahedron or a cubane structure. In an associative transition state a penta-coordinated phosphorus atom would be formed, in a dissociative transition a trigonal metaphosphate. Upon compression, a cholesterol film transforms from a monolayer of trigonal symmetry and low crystallinity to a trilayer, composed of a highly crystalline bilayer in a rectangular lattice and a disordered top cholesterol layer. Numerous examples can be found, from trigonal hillocks on diamonds to pits and highly irregular surfaces on crystals that we are accustomed to seeing in simple planar forms. These are, in order of decreasing symmetry, the cubic, hexagonal, tetragonal, trigonal, orthorhombic, monoclinic, and triclinic systems. Origin Late 16th century: from medieval Latin trigonalis, from Latin trigonum (see trigon).
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