filar

Thân thiện

A scientist adjusts the filar eyepiece of a telescope.

Definition

1. Adjective:
   • Relating to or having filaments: Specifically describes something that possesses or is characterized by fine threads or wires.
   • Pertaining to a measuring scale with fine threads: In scientific instruments, particularly optics, it refers to a reticle or eyepiece equipped with fine lines or wires for precise measurement.

Usage Examples

• Adjective:
  • The microscope was equipped with a filar micrometer for accurate measurements.
  • A filar eyepiece is essential for astronomers to measure the angular distance between stars.

Advanced Usage

• Technical Context: The term is almost exclusively used in technical and scientific writing, particularly in optics, microscopy, and astronomy. It is not common in everyday language.
  • The filar alignment of the crosshairs ensured the telescope's precision.

Variants and Related Words

• Filament (n): A slender threadlike object or fiber, especially one found in animal or plant structures, or used in electrical devices.
  • The light bulb's filament glowed brightly.

Synonyms

• Threadlike: Having the form of a thread; long and thin.
• Filamentous: Consisting of or containing filaments.

Notes on Meaning

• The primary and most common use of "filar" is as a technical adjective in optics. Its general meaning of "relating to filaments" is rare and typically only understood in specialized contexts.

Học thuật

Adjective

1. related to or having filaments (especially across a field of view as in the eyepiece of a telescope)
   • a filar eyepiece