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