noun🔗ShareオパールA mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O."The geologist carefully examined the opal, noting its beautiful colours but also its softer texture compared to the quartz crystals. "地質学者はオパールを注意深く調べ、その美しい色合いだけでなく、水晶の結晶に比べて柔らかい質感にも注目した。mineralgeologymaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗Shareオパール終止コドンA colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA.""In her molecular biology class, Sarah learned that "opal" is another name for the UGA stop codon, which signals the end of protein synthesis. "分子生物学の授業で、サラは「オパール」が、タンパク質合成の終わりを示すUGA終止コドンの別の名前であることを学びました。biologybiochemistryChat with AIVocabulary GamePractice Reading
noun🔗ShareオパールシジミAny of various lycaenid butterflies of the genus Nesolycaena."While hiking in the rainforest, the butterfly enthusiast excitedly pointed out an opal flitting among the ferns. "熱帯雨林でハイキング中、蝶愛好家はシダの間を飛び回るオパールシジミを興奮して指さしました。animalinsectbiologynatureChat with AIVocabulary GamePractice Reading
