smart quotes 
plural noun Computing
Quotation marks which, although all keyed the same, are automatically interpreted and set as opening or closing marks (inverted or raised commas) rather than vertical lines.
- Opisthobranchia
- opisthobranchiate
- opisthocoelian
- opisthocoelous
- opisthodome
- opisthodomos
- opisthodomus
- opisthodont
- opisthogastric
- opisthoglyph
- opisthoglyphic
- opisthoglyphous
- opisthognathous
- opisthograph
- opisthographic
- opisthorchiasis
- opisthosoma
- opisthosomal
- opisthotic
- opisthotonic
- opisthotonos
- opisthotonus
- opium
- opium alkaloid
- opiumate