Definition of "inkless" [inkless]

• Without ink. (adjective)

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• "Other, less sensitive, sensors act as an inkless marker."
• "They have this sort of thing in Japan only without the inkless technology now."
• "Polaroid The PoGo, which stands for Polaroid-on-the-Go, is a black, rectangular inkless printer that churns out photos from plugged-in, digital cameras."