1. Able to expand or be expanded
   - expandible, expansible 
2. (of gases) capable of expansion
   - expandible, expansible, expansile

See also: elastic, expansive

• semimajor axis
• semiminor axis
• semimonthly
• seminal
• seminal duct
• seminal fluid
• seminal vesicle
• seminar
• seminarian
• seminarist
• seminary
• seminate
• seminiferous
• seminiferous tubule
• Seminole
• Seminole bread
• seminoma
• seminude
• semiofficial
• semiology
• semiopaque
• semiotic
• semiotical
• semiotician
• semiotics