any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions

a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine

a form of apatite in which fluorine predominates over chlorine

a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine

a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine

a form of apatite in which fluorine predominates over chlorine

a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine

an antipsychotic drug mainly used to treat schizophrenia (including adolescent schizophrenia), schizoaffective disorder, the mixed and manic states of bipolar disorder, and irritability in people with autism.

a typical antipsychotic drug of the thioxanthene class, used in treatment of schizophrenia and depression.