noun, noun or participle which takes 'suru', intransitive verb
occurrence; outbreak; emergence
Used for events, phenomena, problems, or new things coming into existence or appearing, often spontaneously or as a result of conditions. Covers natural disasters, diseases, incidents, and abstract emergence.
地震の発生を予測するのは難しい。
It is difficult to predict the occurrence of earthquakes.
この地域で感染症が発生した。
An infectious disease broke out in this area.
noun, noun or participle which takes 'suru', transitive verb, intransitive verb
Used for the deliberate or natural production of something, especially power, heat, gas, or signals. Often implies a process or mechanism that brings something forth.
この発電所は電力を発生させる。
This power plant generates electricity.
摩擦で熱が発生する。
Heat is generated by friction.
noun, noun or participle which takes 'suru', intransitive verb
Biology term for the development or growth of an organism, from embryo to mature form. Also used more broadly for the emergence and development of living things.
胚の発生過程を観察する。
Observe the developmental process of the embryo.