nu·mer·ol·o·gy (no?o?m?-r?l??-j?, nyo?o?-)n. The study of the occult meanings of numbers and their supposed influence on human life.[Latin numerus, number; see number + -logy.]nu?mer·o·log?i·cal (-m?r-?-l?j??-k?l) adj.nu?mer·ol?o·gist n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.numerology (?nju?m??r?l?d??) n (Alternative Belief Systems) the study of numbers, such as the figures in a birth date, and of their supposed influence on human affairs numerological adj ?numer?ologist nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014nu?mer?ol?o?gy (?nu m??r?l ? d?i, ?nyu-) n. the study of numbers, as the figures designating the year of one’s birth, to determine their supernatural meaning. [1910?15;