headset
headshell
head-to-head
head-to-tape
head-to-voucher
health
heap
hear
hearing
hearing-aid
  heart-shaped
heat
heat-conducting
heated
heated-wire
heat-emitting
heater
heater-cathode
heater-type
heat-eye
heating

    heart-shaped characteristic

    кардиоидная характеристика направленности