1. Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa
   - quaking aspen, Populus tremula

Type of: aspen

• interlocution
• interlocutor
• interlocutory
• interlocutory injunction
• interlope
• interloper
• interlude
• intermarriage
• intermarry
• intermaxillary suture
• intermediary
• intermediate
• intermediate host
• intermediate temporal artery
• work over
• work papers
• work party
• work permit
• work shift
• work shoe
• work song
• work stoppage
• work study
• work surface
• work through