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- Dictionaryleaf/liːf/
noun
- 1. a flattened structure of a higher plant, typically green and blade-like, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration: "many of the trees had lost their leaves" Similar
- 2. a thing that resembles a leaf in being flat and thin.
verb
- 1. (of a plant, especially a deciduous one in spring) put out new leaves: "many plants need a period of dormancy before they leaf and flower" Similar
- 2. turn over (the pages of a book or the papers in a pile), reading them quickly or casually: "he leafed through the stack of notes" Similar
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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.
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.
An appendage growing from the stem of a plant. Leaves are extremely variable in form and function according to species. For example, the needles of pine trees, the spines of cacti, and the bright red parts of the poinsettia plant are all leaves modified for different purposes.
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system.
one of the flat, usually green parts of a plant that are joined at one end to the stem or branch: a palm leaf. autumn leaves. He was raking up leaves in his yard. Akepong Srichaichana/EyeEm/GettyImages. be in leaf/come into leaf. When a plant is in leaf or when it comes into leaf, it has or gets leaves on it: The trees are in leaf early this year.
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.
Definition of leaf noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
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. In the spring, trees grow new leaves. Ahhh, the circle of life. A plant's leaves are the organs that take part in photosynthesis, which brings it needed nutrients.
Leaves consist of an outer tissue layer (the epidermis) through which water and gases are exchanged, a spongy inner layer of cells that contain chloroplasts, and veins that supply water and minerals and carry out food. Some leaves are simple, while others are compound, consisting of multiple leaflets.
Leaf definition, one of the expanded, usually green organs borne by the stem of a plant. See more.
