慕光性 mùguāngxìng phototaxis Definitions Defs Origin Strokes Stroke Words Sentences Sents 慕 mù to yearn for (bound form) to pine for; to long for; to miss光 guāng noun light light; ray; beam of light性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".