山蛭属：为颚蛭科(Gnathobdellidae)的一属陆生蛭
习惯用语Haemadipsa ceylonica
锡兰山蛭：为锡兰常见的种，咬时很痛，为害人畜Haemadipsa chiliani
智利山蛭：见于南美洲，侵袭马及牛Haemadipsa japonica
日本山蛭：见于日本Haemadipsa zeylandica
扎伊兰山蛭：见于亚洲热带丛林之中，侵袭哺乳动物- 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
- seisesthesia
- seismesthesia