noun, masculine/ˈpoɾo/plural: poros
poro is masculine in Spanish.
pore (tiny opening in the skin); pore (any small opening)
Etymology tree Proto-Indo-European *per- Proto-Indo-European *-os Proto-Indo-European *póros Ancient Greek πόρος (póros)bor. Latin poruslbor. Spanish poro Learned borrowing from Latin porus, borrowed from Ancient Greek πόρος (póros).