shelled

verb

1. (form-of, participle, past)simple past and past participle of shell

adj

1. (in-compounds, not-comparable, often)Having a shell; testaceous.

   “the shelled slug of species Testacella haliotidea”

2. (not-comparable)Having had the shell removed.

   “shelled peas”

3. (not-comparable, slang)Unable to keep up in a race, having used up one's reserves of energy.