Christmas tree

from WordNet (r) 3.0 (2006)
Christmas tree
    n 1: Australian tree or shrub with red flowers; often used in
         Christmas decoration [syn: {Christmas bush}, {Christmas
         tree}, {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},
       {Christmas tree}, {Nuytsia floribunda}]
    3: tall timber tree of central and southern Europe having a
       regular crown and grey bark [syn: {European silver fir},
       {Christmas tree}, {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}, {Christmas tree}, {Abies amabilis}]
    5: an ornamented evergreen used as a Christmas decoration
    
from The Collaborative International Dictionary of English v.0.48
Christmas \Christ"mas\, n. [Christ + mass.]
   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.
   [1913 Webster]

   {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.
      [1913 Webster]
    
from Jargon File (4.4.4, 14 Aug 2003)
Christmas tree
 n.

   A kind of RS-232 line tester or breakout box featuring rows of
   blinking red and green LEDs suggestive of Christmas lights.
    
from The Free On-line Dictionary of Computing (8 July 2008)
Christmas tree

   <hardware, jargon> A kind of {EIA-232} {line tester} or
   {breakout box} featuring rows of blinking red and green {LEDs}
   suggestive of Christmas lights.

   [{Jargon File}]

   (2006-09-20)
    

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