Answer: tox

AnswerCrossword Clue
TOX... screen (lab test)
TOXCrime lab sci.
TOXPoison sci.
TOX.. screen: health care test for poisons, drugs, etc.
TOX.. screen: medical test
TOXPoison: Prefix.
TOXPoisonous: Prefix
TOXMedical examiner's subj.
TOXStudy of poisons: Abbr.
TOXFood safety subj.
TOX... screen (drug test)