Small undulations or waves that occur as a result of a disturbance in a fluid, often seen in water

जल में होने वाला हल्का लहरन

English Usage: After the stone was thrown into the lake, para-ripples spread outward in concentric circles.

Hindi Usage: जब पत्थर तालाब में फेंका गया, तो पैर-तरंगें केन्द्राभिमुख वृत्तों में फैल गईं।