下壓 [－压]

Jyutping haa6 aat3
Pinyin xià yā

Definitions (粵典–words.hk)
  1. 名詞
    心跳​之間​，​心臟​放​鬆​時​嘅​血​壓
    diastolic pressure; the pressure when the heart relaxes between beats.
  2. 反義詞
    上壓
Definitions (Wiktionary)
  1. noun, Hong-Kong, colloquial
    diastolic blood pressure
    (syn.) 舒张压, 舒張壓