The stoma (aka stomate) are the "pores" in the leaves and stems of plants used to control gas exchange.
What is the hod of the small opening on the underside of leaves
protect the opening on leaves
xylem
xylem
The opening in called a urethra, in both males and females.
The Anus
Urethra.
Nucleus Pores
That would be urine.
It is the opening at the front of the gun where the bullet leaves the barrel.
The large opening at the top of the sponge, where water leaves, is called the osculum. It is responsible for expelling the water and waste products from the sponge's body.
urethral meatus