It means "bony." If I may say... if you just need to look up a single word, "google translate" is a faster and more efficient way to get your answer. The advantage of HiNative is to be able to get a more nuanced understanding of a word in specific contexts, and that usually requires sharing a sentence rather than just a word.
Here is a list of synonyms for bony. https://thesaurus.yourdictionary.com/bony. This list includes scrawny and skinny, but they would be used in different contexts. For example, we might say... "the shoulder blades are bony protuberances" but we would not say "the shoulder blades are skinny or scrawny protuberances."