plantule
/ˈplɑːntjuːl/ /ˈplɑːntʃuːl/ /ˈplantjuːl/Botany. Now rare
noun
An embryonic or very young plant; a seedling.
Origin
Early 18th century; earliest use found in Peter Shaw (1694–1763), physician and author. From post-classical Latin plantula plantula; compare -ule. Compare French plantule.