DICT.TW Dictionary Taiwan

 len·ti·cel /ˈlɛntəˌsɛl/
 皮孔

 Len·ti·cel n.  Bot. (a) One of the small, oval, rounded spots upon the stem or branch of a plant, from which the underlying tissues may protrude or roots may issue, either in the air, or more commonly when the stem or branch is covered with water or earth. (b) A small, lens-shaped gland on the under side of some leaves.
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 lenticel
      n : one of many raised pores on the stems of woody plants that
          allow the interchange of gas between the atmosphere and
          the interior tissue