Short answer: no. Vidhyadharas in Jain literature are not a group of people who “created science-based definitions” for Jainism.

What they are:

• Vidhyadharas (vidyadharas) are a class of learned beings or legendary sages mentioned in Jain texts. They appear in stories and cosmology, often connected with knowledge and extraordinary powers, but they are not credited with inventing modern scientific definitions. In Jain scriptures, they show up as part of the mythic and symbolic world of knowledge and dharma. Different Jain texts name various Vidyadharas and their roles, but this does not amount to a human project of defining science within Jainism.
• Jain philosophy itself emphasizes a broad view of knowledge (anekāntavāda, syādvāda) that integrates ethics, logic, metaphysics, and practical conduct, rather than a separate “scientific” program authored by Vidyadharas.

Important nuance:

• There are historical Jain scholars and Acharyas (both Digambara and Śvetāmbara traditions) who contributed to Jain texts, philosophy, grammar, and exegesis. Some works discuss logic, prisca debates, or provide systematic commentaries, but these are not framed as science defined by Vidyadharas per se.

If you’d like, I can point to specific Jain texts or scholastic traditions that elaborate on Vidyadhara imagery or on the Jain approach to knowledge and science (from an authentic Jain perspective).