Plastic embedding is a technique for preserving and preparing biological samples for observation under a microscope. However, there are several other synonyms for this term, including acrylic embedding, resin embedding, and epoxy embedding. These methods involve using various types of plastics, resins and epoxies to infiltrate and harden samples, creating a sturdy and durable material that can be cut and sectioned. Embedded samples can then be used for a variety of purposes, such as histological studies or electron microscopy. While the terminology may vary, all of these techniques serve the same purpose of providing a sturdy yet transparent medium for the preservation and examination of biological specimens.