wrightine
A sandstone arenite that is predominantly composed of silica.
(organic chemistry) A rare alkaloid found in the bark of an East Indian apocynaceous tree (Wrightia antidysenterica).
(not comparable) Existing in three dimensions / (comparable) Having depth, or the illusion of depth, as well as height and width. / (comparable) Lifelike.
Rubia cordifolia / Rubia tinctorum (dyer's madder)
化学者たちは、東インド原産のアポシナ科樹木 Wrightia antidysenterica の樹皮から見つかった希少なアルカロイドを単離し、その特異な構造を解明した。
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