Definition of "foxtail"

The tail of a fox.  examples

A dry spikelet or spikelet seed and flower cluster of some grasses  examples

A plant having a part resembling the tail of a fox or such spikelet.

1. Any of various grasses having bushy seed spikelets that resemble the tail of a fox

   1. species of genus Alopecurus, foxtail grasses.  examples

   2. species of Setaria, foxtail millets.  examples

   3. Bromus madritensis, foxtail brome.  examples

   4. Hordeum jubatum, foxtail barley.  examples

2. Acalypha hispida, chenille plant.  examples

3. Lycopodiella alopecuroides, foxtail clubmoss.  examples

4. Wodyetia bifurcata, foxtail palm.  examples

5. The orchid Rhynchostylis retusa.  examples

(metallurgy) The last cinders obtained in the fining process.  examples