Poppy \Pop"py\, n.; pl. Poppies. [OE. popy, AS. popig, L. papaver.]

(Bot.) Any plant or species of the genus Papaver, herbs with showy polypetalous flowers and a milky juice. From one species (Papaver somniferum) opium is obtained, though all the species contain it to some extent; also, a flower of the plant. See Illust. of Capsule.

California poppy (Bot.), any yellow-flowered plant of the genus Eschscholtzia.

Corn poppy. See under Corn.

Horn, or Horned, poppy. See under Horn.

Poppy bee (Zo["o]l.), a leaf-cutting bee (Anthocopa papaveris) which uses pieces cut from poppy petals for the lining of its cells; -- called also upholsterer bee.

Prickly poppy (Bot.), Argemone Mexicana, a yellow-flowered plant of the Poppy family, but as prickly as a thistle.

Poppy seed, the seed the opium poppy (P. somniferum).

Spatling poppy (Bot.), a species of Silene (S. inflata). See Catchfly.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Poppy \Pop"py\, Poppyhead \Pop"py*head`\, n. [F. poup['e]e doll, puppet. See Puppet.]

(Arch.) A raised ornament frequently having the form of a final. It is generally used on the tops of the upright ends or elbows which terminate seats, etc., in Gothic churches.

Source: Webster's Revised Unabridged Dictionary (1913)