hypogeal

/ˌhaɪpəˈdʒiːəl/
adjective
  1. Growing or living underground.
    • The hypogeal roots of the tree spread deep beneath the soil.
    • Many hypogeal fungi are invisible until they push through the surface.
    • The biologist studied hypogeal insects that spend their entire lives below ground.
  2. Relating to the germination of a seed where the cotyledons remain below the ground.
    • Peas and beans are classic examples of hypogeal plants.
    • The gardener explained that hypogeal seedlings push up a stem without lifting the seed leaves.
    • In hypogeal germination, the seed's first leaves stay underground.
Antonyms
What does "hypogeal" mean? | whatsthatwordmean | whatsthatwordmean