1. Plural of pipistrelle; small insectivorous bats of the genus Pipistrellus, found in Europe, Asia, and Africa, characterized by their tiny size and rapid flight.
Usage: zoology; plural form

Examples

• Pipistrelles are among the smallest bat species in Europe.
• The common pipistrelle and soprano pipistrelle are two species found throughout the United Kingdom.
• Researchers tracked pipistrelles using ultrasonic detectors to study their feeding habits.
• Pipistrelles emerge at dusk to hunt for insects over gardens and woodlands.
• Conservation efforts focus on protecting pipistrelles and their roost sites in old buildings.