2. n. (botany) The part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; a thalamus, a torus.
3. n. In the Asteraceae (aster or sunflower family), the end of the peduncle to which all of the florets of the flower head are attached.
4. n. (phycology) A structure at the end of a branch of an alga containing conceptacles (reproductive organs).
5. n. (zoology) An organ that receives and holds a secretion.
6. n. (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.