General terms:
* Imagery: This is the most common and encompassing term, referring to the use of sensory details to create vivid mental pictures for the reader.
* Sensory language: This emphasizes the use of language that appeals to the five senses: sight, sound, taste, touch, and smell.
* Figurative language: While this term includes many literary devices beyond description, it can be used to refer to the use of metaphors, similes, and other figures of speech to create vivid images.
More specific terms:
* Show, don't tell: This emphasizes the use of concrete details and specific actions to create a vivid picture, rather than simply stating the information.
* Word painting: This term specifically refers to the use of language to create a visual image in the reader's mind.
* Evocative language: This term emphasizes the use of language that evokes an emotional response in the reader.
Ultimately, the best term to use will depend on the specific context and the specific type of descriptive language being used.