Also found in: Thesaurus, Encyclopedia.


The study of mountains.

o′ro·log′i·cal (ôr′ə-lŏj′ĭ-kəl) adj.
o′ro·log′i·cal·ly adv.
o·rol′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.
References in periodicals archive ?
It may continue for four to five more days and spread in more areas, mete orologist Arif Hossain said.
An inventor known only as Robert the Englishman (probably borrowing from Arab treatises) wrote about attempts to devise an astronomical clock in 1271, and a monk called Bartholemew was described as an 'orologist' at St Paul's Cathedral in 1286.