Containing a petition; of the nature of a petition.(adjective)
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Use "petitionary" in a sentence
"I don’t believe in petitionary or intercessory prayer."
"And as go wishes, so go petitionary and intercessory prayers."
"I remember a woman who came to Mass every day at Dolores Mission, and during the time of petitionary prayer she always said the same thing: Por los pecadores, para que ELLOS ..."