#Apion
- Apion — A genus of very small phytophagous coleopteran insects in the family Apionidae, commonly known as clover weevils or seed weevils (e.g., Apion apricans). In history and philology, Apion is the name of a famous 1st-century AD Hellenistic scholar, grammarian, and rhetorician from Egypt, well known for his controversies with Flavius Josephus.
- Apionin — An old historical or commercial name attributed to a yellow aniline dye (also known as auramine O), occasionally used in the late 19th century in medicine and microscopy as a topical antiseptic or histological staining agent. Currently, the term is completely obsolete, replaced by modern chemical nomenclatures.