What's the plural form of infuscation? Here's the word you're looking for.
Answer
The noun infuscation can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be infuscation.
However, in more specific contexts, the plural form can also be infuscations e.g. in reference to various types of infuscations
or a collection of infuscations.
Examples
Head, thorax and body light brown with irregular grey infuscation.
Superficially, the glossy, uniformly brownish-orange color, with the slight infuscation of the fastigium and wings help distinguish this genus.
Fore wing with an infuscation on radial, radiomedial, and sometimes indistinctly medial crossveins.
Wings hyaline, fore wing with an infuscation on radial and radiomedial crossveins.
Remainder of wing with very light infuscation pockmarked by white spots.