pluralityof
The term "pluralityof" is not a standard English word or a recognized technical term. It appears to be a concatenation of the word "plurality" and the preposition "of". Plurality itself refers to a state of being more than one, or the condition of having multiple instances or components. It can also refer to the largest number of votes received by a candidate in an election, even if that number does not constitute a majority.
When "pluralityof" is used, it is likely intended to indicate a collection or a group consisting of