What's the plural form of naphthaline? Here's the word you're looking for.
Answer
The noun naphthaline can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be naphthaline.
However, in more specific contexts, the plural form can also be naphthalines e.g. in reference to various types of naphthalines
or a collection of naphthalines.
Examples
Most authors who have had occasion to describe naphthaline, have noticed its habitudes with sulphuric acid.
