12-letter words containing semi
- semipellucid — somewhat pellucid; partially translucent or transparent
- semiprecious — (of a stone) having commercial value as a gem but not classified as precious, as the amethyst or garnet.
- semitropical — subtropical.
- semivitreous — partially vitreous.
- unseminaried — not having a seminary education
- zoosemiotics — the study of the sounds and signals used in animal communication, as song in birds or tail-wagging in dogs.