産卵

1. Origins, structure, and basic meaning

• Structure: 産卵, read さんらん, denotes the act and season of a female animal depositing eggs.
• Basic usage: It describes a sea turtle laying eggs and protection of a river during fish spawning season.

2. Common pitfalls and similar expressions

• The process of laying eggs
  • It refers to the act and season of an animal depositing eggs, rather than to the eggs themselves.