Trigon

Science / Astrology / Trigon: The three member signs of a triplicity. Also used as an alternate term for grand trine. See also grand trine, triplicity.

Trigonal Planar

Science / Chemistry / Trigonal Planar: A molecular shape that results when there are three bonds and no lone pairs around the central atom in the molecule. The pairs are arranged along the central atom's equator, with 120° angles between MORE

Trigonal Pyramidal

Science / Chemistry / Trigonal Pyramidal: A molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule. NH3 is a trigonal pyramidal molecule. MORE

Trigonal Bipyramidal

Science / Chemistry / Trigonal Bipyramidal: A molecular shape that results when there are five bonds and no lone pairs on the central atom in the molecule. Three of the bonds are arranged along the atom's equator, with 120° angles between them MORE

Axial

Technology / Aviation / Axial: Motion along a real or imaginary straight line on which an object supposedly or actually rotates. MORE

Triplicity

Science / Astrology / Triplicity: A group of three signs belonging to the same element: fire (Aries, Leo, Sagittarius); earth (Taurus, Virgo, Capricorn); air (Gemini, Libra, Aquarius); and water (Cancer, Scorpio, Pisces). The members MORE

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