銳角 [锐－]

Jyutping jeoi6 gok3
Pinyin ruì jiǎo

Definitions (CC-CEDICT)
  1. acute angle
Definitions (Wiktionary)
  1. noun
    acute angle
  2. noun
    angled bastion, such as those employed in Renaissance Europe's star forts.
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）