When I use a word .... Medical wordbooks

Books in which words are collected, with definitions of their meanings and other information, such as etymologies, are commonly called dictionaries. However, other words are available, and apply to different types of the same thing: alveary, etymologicon, expositor, gazetteer, glossary, gradus, idioticon, lexicon, onomasticon, synonymicon, thesaurus, vocabulary, and wordbook. Medical dictionaries include Dunglison's New Dictionary of Medical Science (1833), which is really a lexicon, theNew Sydenham Society's Lexicon, which is really a wordbook, and Dorland's American Illustrated Medical Dictionary (1900), which is a dictionary.