1. Collapse caused by exposure to excessive heat
   - heatstroke

Type of: collapse, prostration

• relativize
• relator
• relatum
• relaunch
• relax
• relaxant
• relaxation
• relaxation behavior
• relaxation method
• relaxation time
• relaxed
• relaxer
• relaxin
• relaxing
• relay
• relay link
• relay race
• relay station
• relay transmitter
• relearn
• release
• release number
• releaser
• releasing
• releasing factor