支气管扩张的：同bronchiectatic- S.E.D.
- sedation
- sedative
- sedentary
- sediment
- sedimentable
- sedimentation
- sedimentator
- sedopeptose
- seed
- Seeligmüller's sign
- Seessel's pouch(pocket)
- segment
- segmenta
- segmental
- segmentation
- segmenter
- Segmentina
- segmentum
- segregation
- segregator
- Sehrt's clamp(compressor)
- Seidel's scotoma(sign)
- Seidlitz powder;powder test
- Seignettes salt