filar

American  

[fahy-ler] / ˈfaɪ lər /

adjective

1. of or relating to a thread or threads.

2. having threads or the like.

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filar British  

/ ˈfaɪlə /

adjective

1. of thread

2. (of an optical instrument) having fine threads across the eyepiece forming a reticle or set of cross wires

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Other Word Forms

• interfilar adjective

Etymology

Origin of filar

1870–75; < Latin fīl ( um ) a thread + -ar ¹

Example Sentences

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.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)

For several thousand years the stars have been called "fixed," but the fine rulings of the filar micrometer tell a different story.

From Scientific American Supplement, No. 288, July 9, 1881 by Various

Westfall, staring into the eyepiece of the filar micrometer, finished measuring the apparent size of the heptagon before he turned toward Stevens and Brandon.

From Spacehounds of IPC by Smith, E. E. (Edward Elmer)

In the filar micrometer two spider lines are parallel, and one intersects them at right angles.

From The Story of the Heavens by Ball, Robert S. (Robert Stawell), Sir

To Bouguer in 1748 is due the true conception of measurement by double image without the auxiliary aid of a filar micrometer, viz. by changing the distance between two object-glasses of equal focus.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various