| HEC | hamster embryo cell; Health Education Council; human endothelial cell; hydroxyergocalciferol; hydrox... |
|---|---|
| HIBAC | Health Insurance Benefits Advisory Council |
| HMAC | Health Manpower Advisory Council |
| ICAA | International Council on Alcohol and Addictions; Invalid Children's Aid Association |
| ICN | intensive care nursery; International Council of Nurses |