springtail Syllabification: (spring·tail)Pronunciation: /ˈspriNGˌtāl/Definition of springtail noun a minute primitive wingless insect that has a springlike organ under the abdomen that enables it to leap when disturbed. Springtails are abundant in the soil and leaf litter. Order Collembola: many families springtail in other Oxford dictionaries Definition of springtail in the British & World English dictionary