nectary

A nectar-secreting structure located either within a flower or on a leaf or other part of a plant.

In botany, a part of a flower that contains or secretes a saccharine fluid.

In entomology, one of two little tubular organs on the abdomen of an aphis or plant-louse, from which a sweet fluid like honey is exuded. Also called honey-tube, siphuncle, or cornicle.

That part of a blossom which secretes nectar, usually the base of the corolla or petals; also, the spur of such flowers as the larkspur and columbine, whether nectariferous or not. See the Illustration of nasturtium.

A gland that secretes nectar

a gland (often a protuberance or depression) that secretes nectar