Definition of "hammer-blow" [hammer-blow]

• The blow of a hammer, or a blow resembling that of a hammer, as the impact of an unbalanced wheel. (noun)

The Century Dictionary (Public Domain)

• "Bravely, and at risk to its economic development India's central bank declared over a week ago that the Asia Clearing Union could no longer be used to settle transactions between India and Iran attaining to the India's purchases of Iranian oil and gas supplies thereby delivering a highly meaningful and symbolic hammer-blow to the Iranian regime please see The Oil Nabobs Slouching Towards Iran."
• "This final act of negation is a hammer-blow to both Jokla and the reader."
• "As he says,This deeply damaging proposal originates from the Independent Advisory Group on Sexual Health & HIV and therefore comes from the heart of the abortion industry – threatening yet another hammer-blow to the sanctity of human life in this country."