Dictionary.net is a project which lets you check how definition of a word changed over time. You can see the definitions in chronological order. We use public domain dictionaries as a sources of definitions for our website. You can also check definitions for medical, scientific, law and computer terms here. We constantly work on adding new definition sources, so you're welcome to check back regularly.
Word of the day
- A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and trapdoor spiders. See Mygale.