the plural word is comedones
A non-plural word, a word (noun or pronoun) that is not plural is singular, a word for just one.
No, the plural of problem is problems.
The plural word for batch is batches.
The plural of diary is diaries.
Baggage is already plural.
Comedones
A blackhead, or open comedo is a wide opening on the skin with a blackened mass of skin debris covering the opening. Despite their name, some blackheads can be yellowish in color. A comedo is a widened hair follicle which is filled with skin debris (keratin squamae), bacteria and oil (sebum). A closed comedo is a whitehead, while an open comedo is a blackhead. the plural of "comedo" is comedomes".
When the sebum plug of a comedo is exposed to air, it oxidizes and becomes a blackhead.
According to the NIH, it is called a comedo.
comedo
The word crises is a plural word; it is the plural form of the word crisis.
There is no plural word for if.
The plural form for the demonstrative pronoun this is these.
A non-plural word, a word (noun or pronoun) that is not plural is singular, a word for just one.
The plural word of delay is delays.
No it's a singular word. A plural word would be "have".
Leukocytes is the plural of leukocyte