| 1. | a combining form meaning “prickly; spiny,” used in the formation of compound words: echinulate. |
| 2. | a combining form representing echinoderm in compound words: echinoid. |
| echin- pref. Variant of echino-. |
| echino- or echin- pref.
[From Latin echīnus, sea urchin; see echinus.] |
echino- or echin-
pref.
Spiny: echinococcosis.