light-quantum C2 Topic:Word Formation & Derivatives US /ˈlaɪtˌkwɑntəm/ UK /ˈlaɪtˌkwɒntəm/ See IPA manual Meanings 1 noun a quantum of light; a photon Einstein treated the light-quantum as carrying a discrete packet of energy. Thesaurus Synonyms 1 noun · a quantum of light; a photon photon Word family Forms light-quanta Related forms lightquantumphoton Etymology Compound of light + quantum; historically used before photon became the standard term. Topics Word Formation & Derivatives General Vocabulary External links Google Images Cambridge Dictionary Wiktionary # light-quantum **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈlaɪtˌkwɑntəm/ **IPA (UK):** /ˈlaɪtˌkwɒntəm/ ## Meanings 1. a quantum of light; a photon ## Examples - Einstein treated the light-quantum as carrying a discrete packet of energy. ## Synonyms - photon ## Related Forms - light - quantum - photon ## Etymology Compound of light + quantum; historically used before photon became the standard term. ## Topics - Word Formation & Derivatives - General Vocabulary markdown