"Lepidoma of the second order" is a specific term within the realm of biology, referring to a type of specialized scales found on certain organisms. While it may not have direct synonyms in common English usage, similar terms can be used to convey similar meanings. One alternative could be "secondary order scales" or "adjacent layered scales" to describe these structures. "Subsequent grade dermal plates" or "successive epidermal laminae" might also be used as synonyms. Though not comprehensive, these synonyms aim to provide a general idea of the concept, allowing for increased understanding and better communication within the biological field.