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... (îò ëàòèíñêîãî ultra - ñâåðõ, çà ïðåäåëàìè), ÷àñòü ñëîæíûõ ñëîâ, îçíà÷àþùàÿ: íàõîäÿùèéñÿ çà ïðåäåëàìè (ïî êîëè÷åñòâåííûì èëè êà÷åñòâåííûì ïðèçíàêàì), êðàéíèé (ñîîòâåòñòâóåò ðóññêîìó "ñâåðõ"), íàïðèìåð óëüòðàìîäíûé, óëüòðàçâóê.