| Acronym | Definition |
|---|
| ICNB➣International Code of Nomenclature of Bacteria (bacteriology) |
| ICNB➣Instituto da Conservação da Natureza e Biodiversidade (Portugal) |
| ICNB➣Ionia County National Bank (Ionia, MI) |
| ICNB➣Intercostal Nerve Block |
| ICNB➣Iliac Crest Needle Biopsy (cancer detection) |