English Etymology From hyper- + threading, coined as a trademark (Hyper-Threading Technology) by Intel. Noun hyperthreading (uncountable) (computing) A form of microprocessor parallelization where each physical processor is treated as two virtual processors. 2005, James Leiterman, 32/64-Bit 80x86 Assembly Language Architecture, page 457:The scope of hyperthreading instructions is not covered in this book. 2010, Mike Laverick, VMware VSphere 4 Implementation, page 307:There are some cases where hyperthreading actually degrades CPU performance, especially when CPU utilization is high. Wikiwand - on Seamless Wikipedia browsing. On steroids.