併発

1. Origins, structure, and basic meaning

• Structure: 併発, read へいはつ, means two or more symptoms, conditions, or failures occurring together.
• Basic usage: It can describe concurrent symptoms in one patient or a contingency in which several system failures arise at once.

2. Common pitfalls and similar expressions

• Two or more conditions occurring together
  • It describes two symptoms in one patient or several failures arising concurrently. It does not specify that one began before another.