somn - stap
- somnambulism
- somniloquence
- somnolent
- somnolent detachment
- sonogram
- sonographer
- sonography
- sonorous rale
- soot wart
- sopor
- soporiferous
- soporific
- sorbic acid
- sordes
- sore
- Sorrin's operation
- soul food
- sound
- Souques's sign
- source image receptor distance
- South African genetic porphyria
- South American blastomycosis
- South American trypanosomiasis
- Southern blot test
- Southey's tube
- Sp
- sp.
- space
- space adaptation syndrome
- space maintainer
- space medicine
- space obtainer
- space regainer
- space sickness
- Spanish fly
- sparganosis
- spartein sulfate
- spasm
- spasmatic asthma
- spasmatic croup
