ex·o·tox·in 
(ĕk′sō-tŏksĭn)
(ĕk′sō-tŏksĭn)n.
A poisonous substance secreted by a microorganism and released into the medium in which it grows.
- parasiticidal
- parasiticide
- parasitism
- parasitize
- parasitoid
- parasitologic
- parasitological
- parasitologist
- parasitology
- parasitosis
- parasol
- parasoled
- parasomnia
- parastatal
- parasympathetic
- parasympathetically
- parasympathetic nervous system
- parasympathomimetic
- parasynthesis
- parasynthetic
- paratactic
- paratactical
- paratactically
- parataxis
- paratenic host