“…Description ■ A linguistic or rhetorical device that employs two terms and the relationship between them (Richards, 1936, as cited in Ortony, Reynolds, & Arter, 1978 ■ A linguistic, physical, or visual device that establishes a correspondence between concepts from different domains of knowledge (Bowdle & Gentner, 2005;Fernández & Remondino, 2013;Oliveira, Reis, Chaize, & Snyder, 2014) Features ■ Expressibility, vividness, compactness ■ Topic/tenor (subject term), the vehicle (metaphorical term), and ground (the common relation between the topic and vehicle; Ortony et al, 1978) ■ Target (the abstract entity/concept) and analog (known or understood entity/ concept; Harrison & Coll, 2008) Purpose ■ Creatively explains a relationship between two different terms, perhaps illuminating hidden similarities ■ Emphasizes language for ornamentation ■ "Invent, organize, and illuminate theoretical constructs" (Bowdle & Gentner, 2005, p. 193) ■ Describes invisible processes, structures, or concepts ■ Describes data ■ Emphasizes scientific content…”