| LIA | Laser Institute of America; leukemia-associated inhibitory activity; lock-in amplifier; lymphocyte-i... |
|---|---|
| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| HAA | hearing aid amplifier; hemolytic anemia antigen; hepatitis-associated antigen; hospital activity ana... |
| op-amp | operational amplifier |
| pre-amp | preliminary amplifier |