| Abbreviations | Meaning |
 | ICSA | Islet Cell Surface Antibody |
 | ICSH | International Committee For Standardization In Hematology; Interstitial Cell-stimulating Hormone |
 | ICT | Interstitial Cell Tumor |
 | ICV | Internal Cerebral Vein; Intracellular Volume; Intracerebroventricular |
 | ICW | Intensive Care Ward; Intermediate Care Ward; Intracellular Water |
 | IDC | Interdigitating Cells |
 | IDC | Idiopathic Dilated Cardiomyopathy; Infiltrating Ductal Carcinoma; Interdigitating Cell |
 | IDC | Immature Dendritic Cell |
 | IEC | Intestinal Epithelial Cell |
 | IFV | Interstitial Fluid Volume; Intracellular Fluid Volume |
 | IG-CAM | Immunoglobulin Of Cell Adhesion Molecule |
 | IGC | Immature Germ Cell; Intragastric Cannula |
 | IGG-SC | Immunoglobulin G Secreting Cells |
 | IGSC | Immunoglobulin-secreting Cell |
 | IHC | Inner Hair Cell |
 | IIF | Immune Interferon; Indirect Immunofluorescence; Intracellular Ice Formation; Isolated Intraperitoneal Fluid |
 | IL | Intracellular Loop |
 | IMC | Intestinal Mast Cell |
 | IMV | Intracellular Mature Virion |
 | IR | Intracellular Receptor |
 | IRBC | Immature Or Infected Red Blood Cell |
 | IRCA | Intravascular Red Cell Aggregation |
 | IS | Intercellular Space |
 | ISC | Immunoglobulin-secreting Cells |
 | ISC | Interstitial Cell |
 | ISC | Irreversibly Sickled Cell |
 | ISCF | Interstitial Cell Fluid |
 | ITP | Islet-cell Tumor Of The Pancreas |
 | JGC | Juxtaglomerular Cell |
 | JGCT | Juvenile Granulosa Cell Tumor; Juxtaglomerular Cell Tumor |
 | K | Killer [cell] |
 | K CELL | Killer Cell |
 | KB | Human Oral Epidermoid Carcinoma Cells |
 | KC | Cathodal Closing; Keratoconus; Keratoconjunctivitis; Knee-to-chest; Kupffer Cell |
 | KCC | Cathodal Closing Contraction; Kulchitzky Cell Carcinoma |
 | KG-1 | Koeffler Golde-1 [cell Line] |
 | KICB | Killed Intracellular Bacteria |
 | KVE | Kaposi Varicelliform Eruption |
 | L | Outer Membrane Layer Of Cell Wall Of Gram-negative Bacteria (layer) |
 | L | Outer Membrane Layer Of Cell Wall Of Gram-negative Bacteria [layer] |
 | LAC | Lung Adenocarcinoma Cells |
 | LAK | Lymphokine-activated Killer [cells] |
 | LC | Langerhans' Cells |
 | LC | Langerhans Cell |
 | LC | Lung Cell |
 | LCA | Liver Cell Adenoma |
 | LCAL | Large-cell Anaplastic Lymphoma |
 | LCAM | Liver Cell Adhesion Molecule |
 | LCC | Lipid-containing Cell |
 | LCC | Liver Cell Carcinoma |