ULTRAVIOLET

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does ultraviolet mean? 

• ULTRAVIOLET (noun)
  The noun ULTRAVIOLET has 1 sense:

1. radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

  Familiarity information: ULTRAVIOLET used as a noun is very rare.

• ULTRAVIOLET (adjective)
  The adjective ULTRAVIOLET has 1 sense:

1. having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end

  Familiarity information: ULTRAVIOLET used as an adjective is very rare.

 Dictionary entry details 

• ULTRAVIOLET (noun)

Sense 1

Meaning:

Radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

Classified under:

Nouns denoting natural phenomena

Synonyms:

ultraviolet; ultraviolet illumination; ultraviolet light; ultraviolet radiation; UV

Hypernyms ("ultraviolet" is a kind of...):

actinic radiation; actinic ray (electromagnetic radiation that can produce photochemical reactions)

Hyponyms (each of the following is a kind of "ultraviolet"):

sun-ray; sunray (a ray of artificial ultraviolet light from a sunray lamp)

Derivation:

ultraviolet (having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end)

• ULTRAVIOLET (adjective)

Sense 1

Meaning:

Having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end

Context example:

an ultraviolet lamp

Similar:

invisible; unseeable (impossible or nearly impossible to see; imperceptible by the eye)

Derivation:

ultraviolet (radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays)

 Context examples 

The patient receives psoralen (a drug that becomes active when it is exposed to light) by mouth or applied to the skin, followed by ultraviolet A radiation.

(Methoxsalen With Ultraviolet A Therapy, NCI Dictionary)

The enzyme repairs damage caused by ultraviolet radiation.

(Dimericine, NCI Dictionary)

This allele, which encodes DNA damage-binding protein 1, plays a role in the mediation of repair to DNA damaged by ultraviolet radiation and the regulation of protein ubiquitination.

(DDB1 wt Allele, NCI Thesaurus)

This allele, which encodes DNA excision repair protein ERCC-1, plays a role in ultraviolet cross-link repair and nucleotide excision repair.

(ERCC1 wt Allele, NCI Thesaurus)

Ultraviolet light from the dying star makes the material glow.

(Hubble Views a Colorful Demise of a Sun-like Star, NASA)

A procedure in which blood is removed from the body and treated with ultraviolet light and drugs that become active when exposed to light.

(Extracorporeal photopheresis, NCI Dictionary)

Ultraviolet light from the host star, which is brighter and hotter than the Sun, heats the upper atmosphere and helps lead to its escape.

(Hubble Uncovers a ‘Heavy Metal’ Exoplanet Shaped Like a Football, NASA)

Absorption of ultraviolet radiation by Phenylalanine is used to quantify protein amounts.

(Phenylalanine, NCI Thesaurus)

Without enough good ozone, people may get too much ultraviolet radiation.

(Ozone, Environmental Protection Agency)

Phototesting is being used to see if drugs taken by mouth to treat cancer make the skin more sensitive to ultraviolet radiation.

(Phototesting, NCI Dictionary)