1. the embryonic shoots of germinating seeds that develop into the stem and leaves of a plant
Usage: botanical term; plural of plumule

Examples

• The plumules emerged from the soil after three days of germination.
• Botanists carefully observed the development of the plumules in the laboratory.
• The plumules grew rapidly once exposed to sunlight.
• Students examined the plumules under microscopes during biology class.
• Healthy plumules indicate successful seed germination.
• The plumules will eventually develop into the plant’s main stem.