light-ray C2 Topic:Word Formation & Derivatives US /ˈlaɪtˌreɪ/ UK /ˈlaɪtˌreɪ/ See IPA manual Meanings 1 noun a line or narrow beam representing the path along which light travels The diagram traces a light-ray through the lens. Thesaurus Synonyms 1 noun · a line or narrow beam... raybeam Word family Forms light-rays Related forms lightrayoptics Etymology Compound of light + ray. Topics Word Formation & Derivatives General Vocabulary External links Google Images Cambridge Dictionary Wiktionary # light-ray **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈlaɪtˌreɪ/ **IPA (UK):** /ˈlaɪtˌreɪ/ ## Meanings 1. a line or narrow beam representing the path along which light travels ## Examples - The diagram traces a light-ray through the lens. ## Synonyms - ray - beam ## Related Forms - light - ray - optics ## Etymology Compound of light + ray. ## Topics - Word Formation & Derivatives - General Vocabulary markdown