1. to make something very small or smaller in size
Usage: British English spelling (American English: miniaturizes); third person singular present tense
2. to represent or depict something in a very small form or scale
Usage: British English spelling (American English: miniaturizes); third person singular present tense

Examples

• The new technology miniaturises computer components to unprecedented levels.
• Modern manufacturing miniaturises electronic devices while increasing their power.
• The artist miniaturises famous paintings on tiny canvases.
• This process miniaturises the circuit board without losing functionality.
• The company miniaturises medical devices to make them easier to implant.
• Digital cameras have miniaturised what once required large equipment.