bonsai

noun, plural bon·sai.

1. a tree or shrub that has been dwarfed, as by pruning the roots and pinching, and is grown in a pot or other container and trained to produce a desired shape or effect.
2. the art or hobby of developing and growing such a plant or plants.

noun plural -sai

1. the art of growing dwarfed ornamental varieties of trees or shrubs in small shallow pots or trays by selective pruning, etc
2. a tree or shrub grown by this method