Definition of "pteroid" []

• A slender bone of some pterodactyls extending from the carpal region in the direction of the humerus. (noun)
• In botany, fern-like; resembling a fern; filicoid.

The Century Dictionary (Public Domain)

• "I like the "kite" model myself, with a broad cheiropatagium, ankle attachment, and medially-oriented pteroid bone."
• "I largely consulted Mike Hansen's skeletals for reference, but I tweaked the proportions a little bit to make the neck less snaky, and put the pteroid bones in a more extended position I don't endorse this for most pterosaurs but in the case of tiny Anurognathus, I can see how it could have been useful for increasing thrust and lift rapidly."