1. Plural of giardia; parasitic protozoans of the genus Giardia that cause intestinal infection in humans and animals.
Usage: Medical/scientific term; Usually used in plural form or as a mass noun

Examples

• The water sample tested positive for giardias.
• Giardias are commonly found in contaminated drinking water.
• The patient's symptoms were caused by giardias acquired during travel.
• Hikers should filter water to avoid ingesting giardias from mountain streams.
• The laboratory identified giardias under the microscope in the stool sample.