Meaning & use

luminaire

noun·Advancedtechnical

Last updated

UK/ˈluːmɪneə/
US/ˌluːmɪˈner/

Meaning

  1. nouncountabletechnicalspecialist

    A complete lighting unit, including the bulb, the fitting that holds it and any shade or cover.

    Grammar: Countable: install four luminaires.

    Patterns

    • a luminaire for something

    The architect chose a sleek luminaire for the hallway.

    Each luminaire in the office has a built-in dimmer.

    The street was lit by energy-saving luminaires.

Word forms

pluralluminaires

Common combinations

install a luminaire
The electrician installed a luminaire above the table.
LED luminaire
An LED luminaire uses less power.
ceiling luminaire
A ceiling luminaire lit the whole room.
outdoor luminaire
The outdoor luminaire must be waterproof.

Synonyms and how they differ

light fitting
Light fitting is the usual British everyday phrase, whereas luminaire is the formal industry term.
lamp
A lamp often means the bulb itself or a portable light, but a luminaire is the whole unit.
fixture
Fixture is the common American word for a fixed light, and is less technical than luminaire.
lantern
A lantern is a portable, often decorative light, which is narrower than luminaire.

Word family

luminous adjective
giving off light
illuminate verb
to light up
luminosity noun
brightness
luminary noun
a famous and influential person

Commonly confused: luminaire or luminary?

luminaire vs luminary

A luminary is a famous person who inspires others, not a lighting unit.

Practice

In lighting design, which term describes the whole unit that holds and covers a light source?

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