@oristarA,
The gut.
That's about as good a word as there is in the whole English language.
He hit him right in the gut.
She was anxious, her gut was tied up in knots and her head throbbed like a clock.
He was shot twice, once in the shoulder and once in the gut. The gutshot killed him.
George Bush didn't always go with what his advisers told him, he went by his own gut.
There is also the word "guts".
(Stomach)
Four glasses of bad vodka and he was puking his guts out all over Broadway.
(Bravery, fortitude)
You have to have real guts to do what he did that day.
If you don't have the guts to stand up for what you believe, then sit down and shut up.
~~
You're right, by the way, I have never seen the word "enterocoelia".
Joe(nor heard it spoken anywhere)Nation