| Title | orbital |
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| Text |
Merriam-Webster's Collegiate Dictionary orbital noun ETYMOLOGY orbital, adjective DATE 1932 : a mathematically described region around a nucleus in an atom or molecule that may contain zero, one, or two electrons English Etymology orbital 1540s, with reference to eye sockets; 1839 with reference to heavenly bodies; from orbit. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 orbital or·bit·al / 5C:bitl; NAmE 5C:rb- / adjective[only before noun] 1. connected with the orbit of a planet or object in space (行星或空间物体)轨道的 2. (BrE) (of a road 道路) built around the edge of a town or city to reduce the amount of traffic travelling through the centre (城市)外环路的noun (BrE) a very large ring road , especially if it is a motorway 高速环行路: the M25 London orbital 伦敦 M25 高速环行路 Webster's Third New International Dictionary, Unabridged Search result show the entry is found in: orbital arch , or orbital electron , or orbital fissure , or orbital fossa , or orbital index , or orbital lobe , or orbital moment , or orbital nerve , or orbital point , or orbital process , or orbital quantum number , or molecular orbital, or p orbital or·bit·al I. \ˈȯ(r)bəd.əl, -bətəl\ adjective Etymology: orbit (I) + -al 1. : of or relating to an orbit < orbital revolution > 2. : ocular < an orbital scale > II. noun (-s) 1. : a solution of the Schrödinger wave equation describing a possible mode of motion of a single electron in an atom or molecule 2. : the state that is described by the orbital |
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