| IRE | internal rotation in extension; iron-responsive element; isolated rabbit eye |
|---|---|
| LPFN | low-pass filtered noise |
| LPFS | low-pass filtered signal |
| MIME | multipurpose Internet mail extension |
| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
| FA | filtered air |
|---|---|
| PER | proboscis extension reflex |
| THE | tonic hind limb extension |