Third-person singular simple present indicative form of nosedive.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "nosedives" in a sentence
"The city didn't start seeing "nosedives" in sales tax figures until the June 2009 payments."
"PS to Matthew: another good thing about cross country skis is that it would let you escape to the south if the Gulf Stream nosedives and bring on a new Ice Age."
"CCTV/Reuters A plane nosedives at an air show in China's Shaanxi province Friday."