(1)動物の皮膚または体表にある小さな開口部
(2)any small opening in the skin or outer surface of an animal
さらに詳しく
(1)葉や茎にある表皮の微小な孔
(2)a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
(1)鼻にある鼻腔への2つの開口部
(2)either one of the two external openings to the nasal cavity in the nose
