详细解释:n. 气囊
词型变化：
形容词:pneumatophoric英语解释：
名词 pneumatophore:
an air-filled root (submerged or exposed) that can function as a respiratory organ of a marsh or swamp plant详细解释：
pneu.mat.o.phore
n.（名词）A gas-filled sac serving as a float in some colonial marine hydrozoans, such as the Portuguese man-of-war.气囊，浮囊：在某些群居的海生水螅纲动物中，用作漂浮物的一种充气小囊，如葡萄牙的僧帽水母的浮囊Botany A specialized respiratory root structure in certain aquatic plants, such as the bald cypress.【植物学】 呼吸根，载气体：在某些水生植物中的一种特殊的起呼吸作用的根结构，如落羽松
【引伸】
pneumat.ophor.ic