This is the 13326th most frequent Russian word.
мурлыкающих
"Мурлыкающих" means "purring" (plural or describing those who are purring).
Adjective form used to describe the cats displaying the action of purring.
Я видел группу мурлыкающих кошек в парке.
I saw a group of purring cats in the park.
Adjective form emphasizing the sound produced by the kittens, engaging the sensory description.
Она слушала сладкий звук мурлыкающих котят.
She listened to the sweet sound of the purring kittens.
Adjective form used broadly for animals, highlighting their calming and soothing action of purring.