Rhodo- is a common prefix used in many words to describe something that is red or pink in color. Some synonyms for rhodo- include rose-, crimson-, cherry-, and fuchsia-. Other related words might include scarlet-, coral-, magenta-, and maroon-, all of which can be used to describe hues in the red to pink spectrum. When used in science or biology, rhodo- refers specifically to the genus Rhododendron, a type of flowering plant that is known for its colorful blooms. Regardless of the context, the use of synonyms can help to add variety and interest to one's vocabulary.