pea

noun
  1. A small, round, green seed that is eaten as a vegetable, typically found in pods. noun
    She added a handful of peas to the salad.
    The children enjoyed picking peas from the garden.
  2. The plant that produces peas, known scientifically as Pisum sativum, which is a climbing plant with small white flowers. noun
    The pea plants in the garden have started to flower.
    He planted rows of peas in the spring.
  3. A unit of measurement used informally to describe something very small or round. noun
    The hailstones were the size of peas.
    She had a pea-sized bruise on her arm.