So dord you don’t know what it means. Here’s a little word history from http://dictionary.reference.com/browse/dord?qsrc=3086.
1934, a ghost word printed in “Webster’s New International Dictionary” and defined as a noun used by physicists and chemists, meaning “density.” In sorting out and separating abbreviations from words in preparing the dictionary’s second edition, a card marked “D or d” meaning “density” somehow migrated from the “abbreviations” stack to the “words” stack. The “D or d” entry ended up being typeset as a word, dord, and defined as a synonym for density. The mistake was discovered in 1939.