What does secundogenitūra mean in Latin?

secundogenitūra, a noun, means “secundogeniture”.

What is the genitive of secundogenitūra?

The genitive singular is secundogenitūrae. secundogenitūra is feminine, first declension.

noun · femininefirst declension

secundogenitūra f (genitive secundogenitūrae)

secundogenitus (“born second”) + -tūra, from secundus (“second”) + genitus (“born”).