a flattened structure of a higher plant, typically green and bladelike, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration.
The female Thrypticus deposits an egg in a water-hyacinth petiole - the stalk that attaches the leaf to the stem.
a thing that resembles a leaf in being flat and thin, typically something that is one of two or more similar items forming a set or stack.
Flat, thin leaves of horn were translucent and used for windowpanes in place of glass.