receptacle

1. (botany) The part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; a thalamus, a torus.Examples: "The form of the flower is highly dependent on the structure of the receptacle, even though this may not always be obvious externally. The receptacle is also called the floral axis, or it is sometimes called the torus, which may be translated as "swelling". These expressions per se imply that, although in the majority of cases the receptacle is greatly reduced, it is frequently thickened in a capitate form or broadened into a definitely disc-like shape."; "A basic flower […] has four series of parts arranged in concentric whorls (or rings) on the receptacle, which is the name given to the expanded end of the pedicel (flower stalk)."

2. (botany) The part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; a thalamus, a torus.Examples: "All flowers in a head share a common receptacle. The receptacle may be flat or convex. It may bear tiny scales called paleae. The paleae of a receptacle are referred to as chaff. Receptacles without paleae are said to be epaleate or naked. When the paleae are shed, they may leave either a smooth or a pitted receptacle. Occasionally, hairs, scales, or bristles may also be present on the receptacle."

3. (phycology) A structure at the end of a branch of an alga containing conceptacles (reproductive organs).Examples: "Plants all marine, of an olive-brown or olive-green colour, becoming black on exposure to air; […] Frutification, tubercles contained in distinct receptacles, or embedded in the frond, and containing dark-coloured seeds surrounded with a pellucid limbus, which escape by a terminal pore."; "In addition to gas bladders, the thallus of reproductive rockweed, Fucus, has inflated tips called receptacles. The small bumps on the surface of each receptacle are conceptacles, chambers within which the gametangia grow."

4. (zoology) An organ that receives and holds a secretion.

5. (electricity, US) A contact device installed at an outlet for the connection of an attachment plug (typically by receiving the plug's prongs) to supply portable appliances or equipment.Examples: "A contact device installed at an outlet for the connection of an attachment plug is a receptacle[…]. A multiple receptacle is a single device consisting of two or more receptacles[…]."; "Whether you call them outlets, plug-ins, or receptacles, these important devices represent the point where the rubber meets the road in your home wiring system. From the basic 15-amp, 120-volt duplex receptacle to the burly 50-amp, 240-volt appliance receptacle, the many outlets in your home do pretty much the same thing: transmit power to a load."US