Is the word spoonfuls an adverb or adjective?

"Spoonfuls" is a noun, specifically a plural noun. It refers to multiple instances of a "spoonful," which is a unit of measurement equal to the amount held by a spoon.

Here's why it's not an adverb or adjective:

* Adverbs describe verbs, adjectives, or other adverbs. They answer questions like "how," "when," "where," or "to what extent." "Spoonfuls" doesn't modify a verb, adjective, or other adverb.

* Adjectives describe nouns. While "spoonful" can be used as an adjective (e.g., "a spoonful of sugar"), "spoonfuls" is not describing a noun.

Example:

* "She took two spoonfuls of medicine."

In this sentence, "spoonfuls" is the object of the verb "took." It's a noun representing the amount of medicine.