Syntaxiom

luminousness

/ˈɫumənəsnəs/ noun

The quality of being luminous.

Word Origin Luminousness is luminous (from Latin lumen 'light') plus the noun suffix -ness. Lumen gives us illuminate (to light up), luminary (a light-giving body), and bioluminescence (living light). The PIE root *leuk- meant 'light, brightness,' also giving us light, lucid, and lunar (moonlight). So luminousness is the quality of shining brightly.

noun The quality of being luminous. countable

The luminousness of the full moon illuminated the entire valley.

(名词) 发光性；发光度；亮度

满月的发光度照亮了整个山谷。

(sustantivo) La cualidad de ser luminoso.

La luminosidad de la luna llena iluminó todo el valle.

(nom) luminosité; éclat; brillance; luminescence [Propriété de ce qui émet ou réfléchit de la lumière ; luminosité.]

La luminousness de la pleine lune a illuminé toute la vallée.

(Substantiv) Leuchtkraft; Luminosität [Die Eigenschaft, leuchtend oder strahlend zu sein; Helligkeit.]

Die **Luminousness** des Vollmonds erhellte das gesamte Tal.

(名詞) 光を発する性質。発光性。

満月の放つ光は、谷全体を見事にくっきりと照らし出した。

(substantivo) luminosidade; brilho [A qualidade de ser luminoso.]

A luminosidade da lua cheia iluminou todo o vale.

Synonyms: luminosity brightness radiance brilliance glow shine incandescence effulgence Antonyms: darkness dimness dullness obscurity

Related words

luminary luminosity luminescence luminescent illuminate illumination illuminati

Get offline access, pronunciation, spaced repetition, and learning games:

Download Syntaxiom →
📱 Offline access 🔊 Pronunciation 🧠 Spaced repetition 📖 Native language bridges