The meaning of LEAF is a lateral outgrowth from a plant stem that is typically a flattened expanded variably shaped greenish organ, constitutes a unit of the foliage, and functions primarily in food manufacture by photosynthesis. How to use leaf in a sentence.

LEAF definition: 1. one of the flat, usually green parts of a plant that are joined at one end to the stem or…. Learn more.

one of the expanded, usually green organs borne by the stem of a plant. any similar or corresponding lateral outgrowth of a stem. a rose leaf. leaves collectively; foliage. …

A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", [2][3] while the leaves, stem, flower, and …

A leaf is part of a plant that's usually green and attached to it by a stem or stalk. In the fall, the leaves of many trees turn various bright colors before falling to the ground.

Aug 19, 2017 · The term leaf refers to the organ that forms the main lateral appendage on the stem of vascular plants. In general, leaves are thin, flat organs responsible for the photosynthesis of the plant.

Mar 27, 2025 · leaf, in botany, any usually flattened green outgrowth from the stem of a vascular plant. As the primary sites of photosynthesis, leaves manufacture food for plants, which in turn ultimately nourish and sustain all land animals. Botanically, leaves are an …

The leaves of a tree or plant are the parts that are flat, thin, and usually green. Many trees and plants lose their leaves in the winter and grow new leaves in the spring. In the garden, the leaves of the horse chestnut had already fallen. A leaf is one …

LEAF meaning: 1 : one of the flat and typically green parts of a plant that grow from a stem or twig; 2 : a sheet of paper in a book page usually used figuratively

A usually green, flattened, lateral structure attached to a stem and functioning as a principal organ of photosynthesis and transpiration in most plants. 2. A leaflike organ or structure. 3. a. Leaves considered as a group; foliage. b. The state or time of having or …