Glycerol is singular. The noun glycerol is an uncountable (mass) noun, a word for a substance.
Liquid can be a noun and an adjective. Noun: A flowing substance. Adjective: Flowing freely like water.
The noun 'sugar' is a common, concrete, mass (non-count) noun, a word for a substance, a thing. The plural form for many uncountable nouns for a substance are used for 'types of' or 'kinds of'; for example, 'The recipe calls for two sugars, brown and granulated white.'
There is no such plural
The plural is whiffs.
The noun 'dirt' is an uncountable noun, a word for a substance; it has no plural form.
The noun magma has no plural form; magma is an uncountable noun, a word for a substance.
No, the noun 'dirt' is an uncountable noun, a word for a substance; it has no plural form.
The noun 'dew' is a singular, uncountable noun; a word for a substance. The noun 'dew' has no plural form.
The noun oxygen is an uncountable noun, a word for a substance, an element. Oxygen has no plural form.
The plural of "polish" can refer to either the country Poland or describe a type of substance used for shining or cleaning.
The likely word is the noun "substance" (plural substances).
The plural form of "pulposus" is simply "pulposi."
The word 'mucous' is an adjective, it has no plural form.The noun 'mucus' is an uncountable (mass) noun as a word for a substance.
The word syrup is an uncountable noun for a substance. Nouns for substances are not identified as separate objects; substance nouns are expressed as amounts or measures:some syrup, a lot of syrup, a bottle of syrup.The plural form for a substance is reserved for 'kinds of' or 'types of'; example:Their selection of syrups included blueberry, raspberry, and my favorite, chocolate.
The noun 'grease' is an uncountable noun as a word for a substance. The plural form for some substances is reserved for 'types of' or 'kinds of'. The plural form of the noun grease is greases. The plural possessive form is greases'.
Helium is a substance; substances are normally non-count nouns with no plural form. The plural form for substances are described in 'units of' such a canister of helium, or cubic feet or cubic meters of helium.