单词 | heterotope |
释义 | > as lemmasˈheterotope ˈheterotope n. Brit. /ˈhɛt(ə)rə(ʊ)təʊp/ , U.S. /ˈhɛdərəˌtoʊp/ [Greek τόπος place] Physics and Chemistry each of two or more elements the atoms of which have different atomic numbers and so occupy different positions in the periodic table.ΘΚΠ the world > matter > chemistry > elements and compounds > [noun] > elements > heterotope heterotope1919 the world > matter > physics > atomic nucleus > [noun] > number of chemical element > separate element heterotope1919 1919 F. Soddy in Jrnl. Chem. Soc. 115 11 Boyle's practical definition of the element..became replaced by a theoretical conception, to which..I propose to apply the term ‘heterotope’, meaning the occupant of a separate place in the periodic table of elements. 1959 L. W. H. Hull Hist. & Philos. Sci. viii. 267 It is now known that there are atoms of different weights having the same chemical properties. These are called isotopes. There are also ‘isobaric heterotopes’, which have the same weight but different chemical properties. < as lemmas |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。