英语词汇“helicoidal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

helicoidal

释义

helix /hēˈliks/

noun (pl hēˈlixes or helices /helˈi-sēz/)

A screw-shaped coil
A curve on a developable surface (esp a right circular cylinder) which becomes a straight line when the surface is unrolled into a plane, distinguished from a spiral, which is a plane curve (mathematics)
The rim of the ear (anatomy)
A small volute or twist in the capital of a Corinthian column (architecture)
A screw-propeller
(with cap) a genus of molluscs including the best-known land snails
One of the genus

ORIGIN: Gr helix a spiral, from helissein to turn round

helical /helˈik-əl/ adjective

helˈically adverb

helicase /hēˈli-kāz/ noun

Any of a group of enzymes that are able to separate the strands of the double-helix of a DNA molecule

Helicidae /-isˈi-dē/ plural noun

A large family of terrestrial, air-breathing gastropods, including the common snails

helˈicograph noun

A drawing instrument for describing spirals on a plane

helˈicoid or helˈicoidal adjective

Like a helix, screw-shaped

helispherˈic or helispherˈical adjective

Loxodromic

helicobacˈter pylori /pī-löˈrī/ noun

A bacterium that is a cause of inflammation of the stomach lining, often leading to ulcers or cancer

helicoid cyme noun

A bostryx

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