| kf | flocculation rate in antigen-antibody reaction |
|---|---|
| LAR | laryngology; late asthmatic response; late reaction; left arm recumbent; leukocyte antigen-related |
| LCAR | late cutaneous anaphylactic reaction |
| LDAR | latex direct agglutination reaction |
| LLR | large local reaction; left lateral rectus [muscle]; left lumbar region |