1. Plural of parainfluenza; a group of viruses that cause respiratory infections, particularly in children, characterized by croup and other upper respiratory symptoms.
Usage: medical/scientific term; typically used in plural form; common in pediatric and clinical contexts

Examples

• Parainfluenzas are among the most common causes of croup in young children.
• The pediatrician tested the child for parainfluenzas after observing symptoms of respiratory infection.
• Parainfluenzas typically spread during fall and winter months.
• There are four main types of parainfluenzas that affect humans.
• The laboratory confirmed the presence of parainfluenzas through viral culture.