"Barebone" is an obscure term that varies from place to place.

They also adopt pseudonyms and use obscure terms to describe their roles within the band.

Often unexplained Chinese characters, ancient Korean words, or obscure terms appear in his work.

So pick me a good thick science fiction novel with lots of obscure technical terms.

A somewhat obscure term, it originated in the 1990s and has, perhaps, fallen into disuse.

The company takes its name from an obscure mathematical term, describing a function that generates other functions.

This is a very obscure term, for which no satisfactory explanation has been found.

Generally, it is used as a somewhat obscure term for extreme liberalism.

This explains how the tax system works, where tax money goes and what many of those obscure terms mean.

"You're all right," said Hawkins, wishing now he had a reference book to clear up several obscure terms.