Christmas tree
  聖誕樹
  Christ·mas n.  An annual church festival (December 25) and in some States a legal holiday, in memory of the birth of Christ, often celebrated by a particular church service, and also by special gifts, greetings, and hospitality.
  Christmas box. (a) A box in which presents are deposited at Christmas. (b) A present or small gratuity given to young people and servants at Christmas; a Christmas gift.
  Christmas carol, a carol sung at, or suitable for, Christmas.
  Christmas day. Same as Christmas.
  Christmas eve, the evening before Christmas.
  Christmas fern Bot., an evergreen North American fern (Aspidium acrostichoides), which is much used for decoration in winter.
  Christmas flower, Christmas rose, the black hellebore, a poisonous plant of the buttercup family, which in Southern Europe often produces beautiful roselike flowers midwinter.
  Christmas tree, a small evergreen tree, set up indoors, to be decorated with bonbons, presents, etc., and illuminated on Christmas eve.
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  Christmas tree
       n 1: Australian tree or shrub with red flowers; often used in
            Christmas decoration [syn: Christmas bush, Ceratopetalum
            gummiferum]
       2: a terrestrial evergreen shrub or small tree of western
          Australia having brilliant yellow-orange flowers;
          parasitic on roots of grasses [syn: flame tree, fire
          tree, Nuytsia floribunda]
       3: tall timber tree of central and southern Europe having a
          regular crown and gray bark [syn: European silver fir, Abies
          alba]
       4: medium to tall fir of western North America having a conic
          crown and branches in tiers; leaves smell of orange when
          crushed [syn: amabilis fir, white fir, Pacific silver
          fir, red silver fir, Abies amabilis]
       5: an ornamented evergreen used as a Christmas decoration