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There does not appear to be a plural of this word in standard usage at the moment, but this would not be unusual since "microscopic" is an adjective, and in the English language, adjectives usually keep their form, whether to describe a singular or a plural word.
However, if you have a situation where the word "microscopics" could be used as a noun, then I am sure you could invent this plural with everyone's approval, since its meaning would be understood by pretty much everyone except for a few stodgy old farts stuck in some book of what is correct and what is not.
It seems there would be many instances where the word "microscopics" could be used, so go ahead and invent. Also, if you feel strongly that this word should be included in the English language, send your suggestion to the OED (Oxford English Dictionary), the ultimate authority on the English language worldwide, and they will research it thoroughly for current usage, and possibly include it in their massive work.
P.S.: If your teacher or professor gives you a problem, ask them to message me and I will give them a several thousand year history of the evolvement of the English language.
What else can I help you with?
What is the plural form of microscopic?
Microscopic is an adjective and does not have a plural form. Microscope, however, is a noun and has a plural form, which is microscopes.
What is the plural form of do and don't in a sentence?
There is no plural form. Do and Do not are verbs
How do you spell the plural form of him?
The plural form of him, her, or it is them. (objective pronouns)
Plural form of bridge?
Bridges is the plural form of bridge.
What is plural form of is?
The plural form of "is" is "are."
What is the plural form of I?
The plural form of "I" is "we."
What is the plural form of was?
The plural form of "was" is "were."
Plural form of mounth?
The plural form of mouth is mouths. The plural form of month is months. The Mounth is a range of hills in Scotland and does not have a plural form.
Is or are groceries a plural or singular?
"Groceries" is the plural form of "grocery."
What is the plural form for beliefs?
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
What is the plural form of that?
The plural form of the demonstrative pronoun 'that' is those.
What is the plural form of meter?
The plural form is metres.
