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candelas

/ˈkændələz/ /ˈkændɪləz/

Meanings
noun
In the International System of Units, the base unit of luminous intensity; the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian. Symbol: cd

Examples :

"The small emergency flashlight had a luminous intensity of only 0.5 candelas, barely enough to see in the dark. "
physics unit

Related Words

Illustration emergency

emergency noun

/ɪˈmɝ.dʒən.si/

A situation which poses an immediate risk and which requires urgent attention.

"Cardiac arrest is an emergency and if you find someone in cardiac arrest you should call 999 immediately."

Illustration monochromatic

monochromatic adjective

/ˌmɑnəkrəˈmætɪk/ /ˌmɒnəkrəˈmætɪk/

Having only one color, represented by differing hues and tints. For example shades in a black and white television.

"The artist created a monochromatic painting using only shades of blue. "

Illustration luminous

luminous adjective

/ˈluːmɪnəs/

Emitting light; glowing brightly.

"The fireflies created a luminous glow in the backyard. "

Illustration frequency

frequency noun

/ˈfɹiːkwənsi/

The rate of occurrence of anything; the relationship between incidence and time period.

"The frequency of bus service has been improved from one every 15 to one every 12 minutes."

Illustration direction

direction noun

/d(a)ɪˈɹɛk.ʃən/

A theoretical line (physically or mentally) followed from a point of origin or towards a destination. May be relative (e.g. up, left, outbound, dorsal), geographical (e.g. north), rotational (e.g. clockwise), or with respect to an object or location (e.g. toward Boston).

"Keep going in the same direction."

Illustration steradian

steradian noun

/stəˈreɪdiən/

In the International System of Units, the derived unit of solid angle; the solid angle subtended at the centre of a sphere of radius r by a portion of the surface of the sphere that has area r2. Symbol: sr

"The lamp's reflector concentrates the light into a solid angle of approximately one steradian, providing focused illumination. "

Illustration intensity

intensity noun

/ɪnˈtɛnsɪti/

The quality of being intense.

"The intensity of the music made it hard to concentrate on my homework. "

Illustration flashlight

flashlight noun

/ˈflæʃˌlaɪt/

A battery-powered hand-held light source.

"My flashlight helped me find my keys after I locked myself out of the house. "

Illustration radiant

radiant noun

/ˈɹeɪdi.ənt/

A point source from which radiation is emitted.

"The sun is a radiant from which heat and light are emitted. "

Illustration radiation

radiation noun

/ɹaɪ.di.ˈaɪ.ʃən/

The shooting forth of anything from a point or surface, like diverging rays of light.

"heat radiation"

Illustration system

system noun

/ˈsɪstəm/

A collection of organized things; a whole composed of relationships among its members.

"There are eight planets in the solar system."

Illustration international

international noun

/ˌɪntəˈnæʃ(ə)n(ə)l/ /ˌɪntɚˈnæʃ(ə)n(ə)l/

Someone who has represented their country in a particular sport.

"The United team includes five England internationals."