he.li.ot.ro.pismn.Biology (名词)【生物学】 Growth or orientation of a sessile organism, especially a plant, toward or away from the light of the sun.向日性,向光性:无柄有机体,尤指植物的向日光或偏离日光而成长或定位【引伸】he.liotrop.iche.liotrop.icallyadv.(副词)