Simple past tense and past participle of punctuate.(verb)
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Use "punctuated" in a sentence
"The Extended Synthesis says those jumps are sometimes hundreds of millions of years and you've coined the term punctuated evolution to cover this."
"The Cedarberg range of the Cape Fold Belt is rugged terrain punctuated with few natural passes."
"In spite of this, the relationship soon stumbled over Iraq, missile defense, and NATO expansion, reaching a low point during Bush's second term punctuated by mutual recriminations and thinly veiled threats."