alcyonarian
(zoology) Any of the Alcyonaria, a subclass of the Anthozoa.
(archaic, slang) Not much good; something of little value or importance.
A congenital deformity of the anterior wall of the chest, in which several ribs and the sternum grow abnormally, giving a caved or sunken appearance.
plural of cardioprotective
夜間のダイビングで、サンゴ礁の海流に合わせてリズミカルに揺れる軟質サンゴを見ていた。
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