/ (ˈɔːldɪs) /
a portable lamp used to transmit Morse code
YokoRead more in this article about some frequently asked questions and fun facts related to our definitions.
Everything You Need To Know About Prefixes And SuffixesPrefixes and suffixes are super useful for customizing the meanings of words, but what are they? A prefix is a group of letters (or an affix) that’s added to the beginning of a word, and a suffix is an affix that’s added to the end of a word. Prefixes modify the meaning of a word. They can make a word negative, show repetition, or indicate …
Word Origin for Aldis lamp
C20: originally a trademark, after A. C. W. Aldis, its inventor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012