1. (of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity
   - diestrous, dioestrous, diestrual

See also: anestrous

• trail boss
• trail mix
• trail riding
• trailblazer
• trailblazing
• trailer
• trailer camp
• trailer park
• trailer park trash
• trailer trash
• trailer truck
• trailhead
• trailing
• trailing arbutus
• trailing edge
• trailing four o'clock
• trailing windmills
• train
• train depot
• train dispatcher
• train fare
• train of thought
• train oil
• train set
• train station