pitch·stone 
(pĭchstōn′)
(pĭchstōn′)n.
Any of various volcanic glasses distinguished by their dull pitchlike luster.
[Translation of German Pechstein.]
- intentional community
- intentional fallacy
- intentionalism
- intentionalist
- intentionality
- intentionally
- intently
- intentness
- inter
- inter-
- inter.
- interabang
- interabang
- interact
- interactant
- interaction
- interactive
- interactively
- interagency
- inter alia
- inter alios
- interannual
- interannually
- interatomic
- interbank