Simple past tense and past participle of suffuse.(verb)
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Use "suffused" in a sentence
"They crowded into the doorway while little Jimmy gazed upward, his expression suffused with such undisguised wonder that he might have been beholding one of Nature’s marvels: the snowcapped peaks of the mighty Rocky Mountains, for example, or the roaring cataracts of Niagara."
"This is a rather quiet, though quirky, title suffused with warmth and humor, but it's an eye-opener for anyone unfamiliar with the setting."
"[Page 123] losing the income that supported us both; but, oh, I am so glad that you know it now, and her eyes were again suffused with tears."