tailed

What it means

1. in compoundsnot comparableoftenHaving a tail.

   This is a species of long-tailed mouse.

   2 more examples

   There are several tailed species of mammals.

   A one-tailed hypothesis will make predictions in one particular direction.

2. not comparablebiologyOf certain butterflies, having one or more filamentous projections on the tornal section of each hind wing.

In a sentence

There are several tailed species of mammals.

Where it comes from

1. Middle Englishtayled
2. Englishtailed

From Middle English tayled; equivalent to tail + -ed.