at·ro·pine 
(ătrə-pēn′, -pĭn) also at·ro·pin (-pĭn)
(ătrə-pēn′, -pĭn) also at·ro·pin (-pĭn)n.
A poisonous, bitter, crystalline alkaloid, C17H23NO3, obtained from belladonna and other related plants. It is used to dilate the pupils of the eyes and as an antispasmodic.
[From New Latin Atropa, genus name of belladonna, from Greek Atropos, Atropos; see ATROPOS.]
- opportunely
- opportuneness
- opportunism
- opportunist
- opportunistic
- opportunistic infection
- opportunity
- opposability
- opposable
- oppose
- opposer
- opposite
- opposite field
- opposite-field
- oppositely
- oppositeness
- opposite number
- opposition
- oppositional
- oppositionist
- oppress
- oppression
- oppressive
- oppressively
- oppressiveness