Lenticel definitions

lĕn'tĭ-sĕl'
One of the small, corky, oval or elongated areas on the surface of a plant stem, trunk, or fruit that allow the interchange of gases between the interior tissue and the surrounding air.
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A spongy area in the bark of a woody plant, serving as a pore to permit the exchange of gases between the stem and the atmosphere.
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One of the small areas on the surface of a plant stem, trunk, or fruit that allow the interchange of gases between the metabolically active interior tissue and the surrounding air or pockets of air in the soil. Lenticels are portions of the periderm that have numerous pores or intercellular spaces. They appear as raised circular or elongated areas. The dark lines in birch bark and the tiny dots sometimes seen on skin of apples and pears are lenticels.
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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.
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A small, lens-shaped gland on the under side of some leaves.
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Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
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Origin of lenticel

New Latin lenticella diminutive of lēns lent- lens lens