The Collaborative International Dictionary of English v.0.48:

China \Chi"na\, n.
   1. A country in Eastern Asia.
      [1913 Webster]

   2. China ware, which is the modern popular term for
      porcelain. See Porcelain.
      [1913 Webster]

   China aster (Bot.), a well-known garden flower and plant.
      See Aster.

   China bean. See under Bean, 1.

   China clay See Kaolin.

   China grass, Same as Ramie.

   China ink. See India ink.

   China pink (Bot.), an anual or biennial species of
      Dianthus (Dianthus Chiensis) having variously colored
      single or double flowers; Indian pink.

   China root (Med.), the rootstock of a species of Smilax
      (Smilax China, from the East Indies; -- formerly much
      esteemed for the purposes that sarsaparilla is now used
      for. Also the galanga root (from Alpinia Gallanga and
      Alpinia officinarum).

   China rose. (Bot.)
      (a) A popular name for several free-blooming varieties of
          rose derived from the Rosa Indica, and perhaps other
          species.
      (b) A flowering hothouse plant (Hibiscus Rosa-Sinensis)
          of the Mallow family, common in the gardens of China
          and the east Indies.

   China shop, a shop or store for the sale of China ware or
      of crockery.

   Pride of China, China tree. (Bot.) See Azedarach.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Hibiscus rosa-sinensis
    n 1: large showy Asiatic shrub or small tree having large single
         or double red to deep-red flowers [syn: China rose,
         Chinese hibiscus, Rose of China, shoeblack plant,
         shoe black, Hibiscus rosa-sinensis]