Translation

lens / magnifier / loupe

Meaning

A single lens used to assist vision or examine small objects.

Examples

• The jeweler used a small eyeglass to inspect the clarity of the diamond.
  The jeweler used a small eyeglass to inspect the clarity of the diamond.
• He held the eyeglass up to his eye to decipher the faded inscription on the coin.
  He held the eyeglass up to his eye to decipher the faded inscription on the coin.