slang for sexual intercourse | the hard largely calcareous covering of a mollusc or a brachiopod |
a fastener with a tapered threaded shank and a slotted head | hard outer covering or case of certain organisms such as arthropods and turtles |
a propeller with several angled blades that rotates to push against water or air | ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun |
a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole | a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) |
someone who guards prisoners | the housing or outer covering of something |
| a very light narrow racing boat |
| a rigid covering that envelops an object |
| the exterior covering of a bird's egg |
| the hard usually fibrous outer layer of some fruits especially nuts |
| the material that forms the hard outer covering of many animals |