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Use "semisphere" in a sentence
"Those invited to take part and who did write back said things like, “semisphere, which, when blue, a yellow circle is pasted, and to which, when black, some thousand of tiny sparks are affixed.”"
"Or else an answer folded into the way she turned and regarded him, her eyelids at half-mast, a pure ebony glint that seemed to sink down and reside in the lower semisphere of her iris, that glint mightier than the homely glasses and imparting a potent yet always veiled opinion of the things she took in."
""No?" exclaimed Mrs. Shattuck, her gaze darting up to the softly humming semisphere."