DIHEDRAL

Etymology

Noun

dihedral (plural dihedrals)

(mathematics) An angle between two plane surfaces

(aeronautics) The upward slope of an aircraft's wing

(chemistry) The angle between pairs of chemical bonds separated by a third bond

Adjective

dihedral (not comparable)

(mathematics) Consisting of, relating to or contained between two plane surfaces.

(of a kite or an aeroplane) Having wings that form a dihedral angle, especially when the angle between the upper sides is less than 180°.

(aviation) Of wing pairs, inclined at an upward angle to each other.

Antonyms

• anhedral

Source: Wiktionary


Di*he"dral, a. Etym: [Gr. Diedral.]

Definition: Having two plane faces; as, the dihedral summit of a crystal. Dihedral angle, the angular space contained between planes which intersect. It is measured by the angle made by any two lines at right angles to the two planes.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

30 April 2024

NURSE

(verb) treat carefully; “He nursed his injured back by lying in bed several hours every afternoon”; “He nursed the flowers in his garden and fertilized them regularly”


coffee icon

Coffee Trivia

Plain brewed coffee contains almost no calories, while coffee with dairy products, sugar, and other flavorings is much higher in calories. An espresso has 20 calories. A nonfat latte has 72, while a flavored one has 134.

coffee icon