from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of or relating to a thread.
- adjective Having fine threads across the field of view for measuring small distances, as in the eyepiece of a telescope.
from The Century Dictionary.
- Thread-like; filaceous or filamentous.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Of or pertaining to a thread or line; characterized by threads stretched across the field of view
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or relating to a
threador line; characterized by threads stretched across the field of view.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective related to or having filaments (especially across a field of view as in the eyepiece of a telescope)
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Over 10,000 filar-micrometer and red light CCD measurements of Mars' north polar cap have been taken over the past 40 years, and they show that it has been shrinking.
For several thousand years the stars have been called "fixed," but the fine rulings of the filar micrometer tell a different story.
Rotate the screw of the filar micrometer until the movable wire coincides with the fixed one, and the index marks zero on the drum head.
Wolf and Pritchard had, it is true, been beforehand with him; but the wide scattering of the grouped stars puts the filar micrometer at a disadvantage in measuring them, producing minute errors which the arduous conditions of the problem render of serious account.
Its segments are separable to the extent of 2°, and through the contrivance of cylindrical slides (originally suggested by Bessel) perfect definition is preserved in all positions, giving a range of accurate measurement just six times that with a filar micrometer.
Place the filar micrometer and the stage micrometer in their respective positions.
At one end of the drum are gear teeth, 1 mm. apart on centers, which can be made to engage a worm revolving a pointer in front of a dial graduated to hundredths; by means of this and a filar eyepiece, the distance between the start of the two rows of spark dots on the drum can be measured accurately to 0.01 mm.
Westfall, staring into the eyepiece of the filar micrometer, finished measuring the apparent size of the heptagon before he turned toward
A spider web, revealing its geometric perfection, hung half across one corner of the rude casement; the moonbeams without were individualized in fine filar delicacy, like the ravellings of a silver skein.
All adown the desert aisles of the leafless woods the light lay with a flocculent glister like snow, so enhanced was its whiteness in the rare air and the blackness of the forest shadows -- spare, clearly drawn, all filar and fine like the intricacies of a delicate line engraving.