Final answer:
A concrete noun names or describes something perceivable by the senses. Descriptive imagery utilizes such nouns to create vivid pictures in the reader's mind. A lemon can be described using sensory details as an example.
Step-by-step explanation:
A noun that names or describes something that we can perceive with one or more of our senses is known as a concrete noun. This type of word reflects an aspect that can be identified through the senses such as touch, taste, smell, sight, and hearing, as defined by Merriam-Webster. Concrete nouns are opposed to abstract nouns, which represent ideas that cannot be seen or touched but are understood mentally, such as happiness or love.
Descriptive imagery in writing often utilizes concrete nouns to create vivid pictures in the mind of the reader by appealing to their senses. When a writer uses imagery effectively, they are able to convey the characteristics of the physical universe in a way that can be perceived and objectively measured by the reader.
To demonstrate, one might describe a lemon using sensory details: its bright yellow color, sour taste, citrus smell, and slightly rough texture, all of which exemplify concrete descriptors that appeal to the senses.