[len-tuh-sel] /ˈlɛn təˌsɛl/
a body of cells formed on the periderm of a stem, appearing on the surface of the plant as a lens-shaped spot, and serving as a pore.
any of numerous pores in the stem of a woody plant allowing exchange of gases between the plant and the exterior
One of the small areas on the surface of the stems and roots of woody plants 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.
[len-ti-kuh l] /ˈlɛn tɪ kəl/ noun 1. a window in a clock case revealing the motion of the pendulum bob. /ˈlɛntɪkəl/ noun 1. (geology) a lens-shaped layer of mineral or rock embedded in a matrix of different constitution
lenticonus len·ti·co·nus (lěn’tĭ-kō’nəs) n. A conical projection of the anterior or posterior surface of the lens, occurring as a developmental anomaly.
- Lenticular ansa
lenticular ansa n. The tortuous efferent pathway of the pallidum in the brain.
- Lenticular astigmatism
lenticular astigmatism n. Astigmatism due to a defect in the curvature, position, or index of refraction of the lens.