1. a single eyeglass lens held in place over one eye

Examples

• The distinguished gentleman adjusted his monocle to read the fine print.
• She wore a monocle on a chain around her neck.
• The detective’s monocle glinted in the lamplight as he examined the evidence.
• Victorian portraits often show wealthy men wearing a monocle.
• He polished his monocle with a silk cloth before putting it on.
• The monocle fell from his eye when he gasped in surprise.