Men·de·ley·ev, Dmi·tri I·van·o·vitch /ˌmendəˈleɪev, dəˈmiːtri ɪˈvɑːnəvɪtʃ/
(1834–1907) a Russian scientist who invented the
periodic table, which is a list of all the
elements (=basic chemical substances) arranged according to their
atomic number [TahlilGaran] Dictionary of Contemporary English ▲