| Ha | absolution hypermetropia; hafnium; hamster; Hartmann number |
|---|---|
| IN | icterus neonatorum; impetigo neonatorum; incidence; incompatibility number; infundibular nucleus; in... |
| ISSN | International Standard Serial Number |
| KHN | Knoop hardness number |
| Kn | knee; Knudsen number |