Definition of ironclad. 1  1 : sheathed in iron armor âused especially of naval vessels. 2  2 : so firm or secure as to be unbreakable: such asa : binding an ironclad oathb : having no obvious weakness an ironclad case against the defendant.
Best Answer: CR means a credit. If this appears on the balance due line of your statement, it means that you owe nothing and that you are that much ahead of future charges and no payment or acknowledgment is needed.
Top 10 facts about the world. In the United States, a currency transaction report (CRT) is a document that is filed each time that any financial transaction over the amount of $10,000.00 US Dollars (USD) takes place. The transaction can involve financial instruments such as domestic currency, coin, silver certificates and foreign currency.