jewel block
(nautical) A block at the extremity of a yard, through which the halyard of a studding sail is rove.
(organic chemistry) A poisonous amido acid, C₆H₁₃NO₂, originally obtained from decaying horseflesh and similar in action to curare.
To remain unused for a long period of time.
(mineralogy) A tetragonal-dipyramidal black mineral containing barium, iron, oxygen, and titanium.
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DiQt（ディクト）
無料
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