ironclad

Its defense agreement fell short of the ironclad mutual-defense pact it wants.

Then, in 1973, a team of scientists from Duke University’s Maritime Laboratory found the historic ironclad.

Funds that invest in AI deals say they carry little risk, because tech companies with deep pockets have ironclad leases that will generate the money to pay investors back.

“We have an ironclad rule at IMAX, which is that our word is our word and we won’t mess around with that,” the CEO said.

But I am less sure about his claim that, because of a growing 19th-century population, “land’s connection to power became ironclad.”