2 words in this vocabulary list
noun a stream of high-energy electrons or positrons emitted by a radioactive substance or generated by a particle accelerator
noun a noun is a word that represents a person, place, thing, or idea. In this case, 'hypothesis' is a noun that refers to a proposed explanation for a phenomenon.
adjective an adjective is a word that describes or modifies a noun. In this case, there is no applicable adjective for 'accretionary hypothesis'.