a dry fruit or pod which is made up of several parts or carpels, and opens to discharge the seeds, as, the capsule of the poppy, the flax, the lily, etc
a fibrous casing surrounding an organ or gland; also a coating for some bacteria which protects them, from the bodies immune system It is only the variety of Pneumococcus sp which has a capsule which is able to pass the immune barrier and cause pneumonia