from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An optical device that projects an image of an object onto a plane surface, especially for tracing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An instrument that uses a shaped prism or mirrors to cause an apparent image of external objects to appear as if projected upon a plane surface, so that the outlines may be conveniently traced.
from the GNU version of the Collaborative International Dictionary of English
- An instrument which by means of a prism of a peculiar form, or an arrangement of mirrors, causes an apparent image of an external object or objects to appear as if projected upon a plane surface, as of paper or canvas, so that the outlines may conveniently traced. It is generally used with the microscope.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an optical device consisting of an attachment that enables an observer to view simultaneously the image and a drawing surface for sketching it
New Latin camera lūcida : Latin camera, chamber + Latin lūcida, feminine of lūcidus, light.(American Heritage® Dictionary of the English Language, Fourth Edition)