What does the root therm(o) refer to?

What does the root therm(o) refer to?

• A. Chest
• B. Heat
• C. Across
• D. To Give Birth

Answer: (B)

Therm(o) denotes heat, coming from the Greek word thermos for hot. This root is used in terms about temperature and heat production, so you’ll see it in thermometer (measures temperature), thermal (relating to heat), and thermoregulation (how animals maintain their body temperature). In other words, the concept linked to therm(o) is heat. The other options describe completely different ideas—chest relates to the thorax, across to moving from side to side or through, and to give birth connects to birth processes—so they don’t fit this root.

Therm(o) denotes heat, coming from the Greek word thermos for hot. This root is used in terms about temperature and heat production, so you’ll see it in thermometer (measures temperature), thermal (relating to heat), and thermoregulation (how animals maintain their body temperature). In other words, the concept linked to therm(o) is heat. The other options describe completely different ideas—chest relates to the thorax, across to moving from side to side or through, and to give birth connects to birth processes—so they don’t fit this root.