APERTURES

Noun

apertures

plural of aperture

Anagrams

• repasture

Source: Wiktionary


APERTURE

Ap"er*ture, n. Etym: [L. apertura, fr. aperire. See Aperient.]

1. The act of opening. [Obs.]

2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. An aperture between the mountains. Gilpin. The back aperture of the nostrils. Owen.

3. (Opt.)

Definition: The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.

Note: The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100Âş aperture.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

2 April 2025

COVERT

(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”


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Coffee Trivia

According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.

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