binoculars

/bi'nɔkjuləz/

Thân thiện

A birdwatcher uses binoculars to observe a distant eagle.

Definition

1. Noun (plural):
   • An optical instrument designed for simultaneous use by both eyes: A device consisting of two small telescopes joined together, allowing the user to see distant objects more clearly by looking through both eyes at once. It is always used in plural form.

Usage

• Binoculars are used for activities like birdwatching, stargazing, watching sports events, or observing scenery.
• They are characterized by two numbers (e.g., 7x50), where the first indicates magnification power and the second indicates the diameter of the objective lenses in millimeters.
• Grammatically, the word "binoculars" is treated as a plural noun (e.g., "The binoculars on the table").

Examples

• Noun:
  • She used her binoculars to spot eagles in the distance.
  • These binoculars have excellent clarity for stargazing.
  • He raised the binoculars to his eyes to get a better view of the stage.

Advanced Usage

• "A pair of binoculars": The standard phrase to refer to one complete binocular instrument. Although "binoculars" is plural, we use "pair" to quantify it.
  • I bought a new pair of binoculars for my safari trip.

Variants and Related Words

• Binocular (adjective): Involving, relating to, or designed for the use of both eyes.
  • Binocular vision is crucial for depth perception.
• Monocular (noun): An optical instrument for use with one eye.
• Telescope (noun): An optical instrument for viewing distant objects, typically used with one eye or for astronomical observation.

Synonyms

• Field glasses: A common synonym, especially for models used outdoors.
• Opera glasses: Low-power binoculars specifically designed for use in theaters.

Related Phrases

• To focus/binoculars: To adjust the lenses for a clear image.
  • It took a moment to focus the binoculars on the moving ship.
• Through binoculars: Using binoculars to view something.
  • We watched the whales through binoculars.

Idioms

(No common idioms are directly formed from the word "binoculars".)

Học thuật

Noun

1. an optical instrument designed for simultaneous use by both eyes

Từ đồng nghĩa

• field glasses
• opera glasses