(US, metallurgy) A common ball bearing metal, also used for blademaking, knifemaking. A high-carbon low-alloy chromium steel; typically containing 1.0% carbon and 1.5% chromium, with low silicon (0.25%) and manganese (0.35%).

(mathematics) Synonym of pentacontaheptachoron

Internet users who are paid by the authorities of the People's Republic of China to spread propaganda and disinformation on their behalf.

plural of Heinz 57

Alternative form of fifth wheel

plural of fifth wheel

Alternative spelling of fifth grader

Alternative form of 50 cent army

plural of 50 cent

(US, derogatory) Cheap.