| IRC | inspiratory reserve capacity; instantaneous resonance curve; International Red Cross; International ... |
|---|---|
| LACN | local area communications network |
| NDC | National Data Communications; National Drug Code; Naval Dental Clinic; nondifferentiated cell |
| DS | 1) Dead Space 2) Dehydroisoandrosterone Sulfate |
| ICS | Inter-Costal Space = IS |