Bot. opening or splitting by a transverse fissure around the circumference, leaving an upper and lower half: said of certain seed pods or capsules
Origin of circumscissilecircum- + scissile
Splitting or opening along a circumference, with the top coming off as a lid: a circumscissile seed capsule.
Origin of circumscissilecircum– + Latin scissilis, easily split, splitting; see scissile.