1. Plural of microfilaria; the larval stage of parasitic filarial worms found in the blood or tissue fluids of infected hosts.
Usage: medical/scientific term; used in parasitology and tropical medicine

Examples

• The blood test revealed the presence of microfilarias in the patient's circulation.
• Microfilarias are transmitted to humans through the bites of infected mosquitoes and other arthropods.
• Under the microscope, the technician identified microfilarias characteristic of lymphatic filariasis.
• Treatment aims to eliminate microfilarias from the bloodstream to prevent disease progression.
• The density of microfilarias in the blood can vary depending on the time of day and the species of parasite.