christ's-thorn Meaning, Definition & Usage

  1. noun thorny Eurasian shrub with dry woody winged fruit
    Paliurus spina-christi; Jerusalem thorn.
  2. noun spiny tree having dark red edible fruits
    jujube; jujube bush; Ziziphus jujuba; Jerusalem thorn.

WordNet

Christ's-thorn` noun
Definitions
  1. (Bot.) One of several prickly or thorny shrubs found in Palestine, especially the Paliurus aculeatus, Zizyphus Spina-Christi, and Z. vulgaris. The last bears the fruit called jujube, and may be considered to have been the most readily obtainable for the Crown of Thorns.

Webster 1913