oestr- or oestro-(NAmer estr-) (estro-) comb. form

• heat
• heat barrier
• heat capacity
• heat death
• heated
• heat engine
• heater
• heat exchanger
• heat exhaustion
• heath
• heathen
• heather
• heathery
• Heath Robinson
• heating
• heat pump
• heat rash
• heat-seeking
• heat shield
• heat sink
• heatstroke
• heat-treat
• heat wave
• heave
• heave-ho