What's the plural form of spring equinox? Here's the word you're looking for.
Answer
The noun spring equinox can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be spring equinox.
However, in more specific contexts, the plural form can also be spring equinoxes e.g. in reference to various types of spring equinoxes
or a collection of spring equinoxes.
