meristem

/ˈmɛrɪstɛm/
noun
  1. The part of a plant where new cells are formed, allowing the plant to grow.
    • The meristem at the tip of the root helps the plant grow deeper into the soil.
    • Gardeners know that cutting the meristem can change how a plant branches.
    • Scientists study the meristem to understand how plants repair themselves after damage.
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