12-letter words containing sia
- russian zone — a zone in Germany controlled by the Soviet Union 1945–89.
- sialadenitis — inflammation of one or more of the salivary glands.
- siamese twin — (not in technical use) conjoined twin.
- somaesthesia — sensory perception of bodily feelings like touch, pain, position of the limbs, etc
- synaesthesia — synesthesia.
- tachyphrasia — a communication disorder involving rapid, unintelligible speech
- tardenoisian — of or referring to a Mesolithic culture characterized by small flint instruments
- telaesthesia — telesthesia.
- the-persians — a tragedy (472 b.c.) by Aeschylus.
- thermalgesia — pain caused by heat.
- west prussia — a former province of Prussia: since 1945 part of Poland.
- white russia — Belorussia