supplementary aperture meaning in Hindi

Examples

1. "' Discorbacea "', Discorboidea in recent taxonomies, is a superfamily of foraminifera, ( testate protists ), with a range extending from the Middle Triassic to the present, characterized by chambers arranged in a low trochspiral; an umbilical or interiomarginal aperture, with or without supplementary apertures; and a wall structure that is optically radial.