noun / verb
leaf
LEEF/liːf/
A thin flat plant organ extending from a stem.
A healthy green leaf grows from a small plant stem.

Etymology
Old English lēaf named both plant foliage and a page or sheet of paper. The plant meaning survives directly, alongside the longstanding use of the same word for a thin sheet.
In context
Leaf nodes. This is an interesting deficiency symptom. Leaf nodes, so the distance between new leaf growth on your plant, on the stem of your plant, is going to be shorter.
More examples
- The maple's leaves turn red in the fall.
- She adds a fresh basil leaf to the soup.
- The trees leaf out as the weather warms.
Forms
leaf · leaves · leafed · leafing
leafy adjective — Covered with or having many leaves.
leafless adjective — Having no leaves or foliage.