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capsule science definition
- A dry dehiscent fruit that develops from two or more carpels, as in the poppy and the cottonwood tree.
- The sporangium (the hollow spore-producing structure) of mosses and other bryophytes.
- The outer layer of viscous polysaccharide or polypeptide slime with which some bacteria cover their cell walls. Capsules provide defense against phagocytes and prevent the bacteria from drying out.
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