from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make parallel; line up.
- transitive v. To adjust the line of sight of (an optical device).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To focus into a narrow beam or column.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to render parallel, as rays of light.
from The Century Dictionary and Cyclopedia
- To bring into the same line, as the axes of two lenses or the telescope of an optical instrument; also, to make parallel, as the rays of light passing through a lens.
- To render the line passing through the optical center of the object-glass of a telescope and the middle wire of its reticule strictly perpendicular (or sometimes parallel) to the axis on which the telescope turns: usually by the aid of a collimator, or of star-observations in reversed positions of the instrument.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. make or place parallel to something
- v. adjust the line of sight of (an optical instrument)
New Latin collīmāre, collīmāt-, alteration of Latin collīneāre, to aim : com-, intensive pref.; see com- + līneāre, to make straight (from līnea, line; see line1).(American Heritage® Dictionary of the English Language, Fourth Edition)