Adverb
in succession
Source: WordNetthe prisoners came out one by one Source: Internet
A bitwise operation optionally process bits one at a time. Source: Internet
An ambiguous stimulus may be translated into multiple percepts, experienced randomly, one at a time, in what is called " multistable perception ". Source: Internet
A revolver works by having several firing chambers arranged in a circle in a cylindrical block that are brought into alignment with the firing mechanism and barrel one at a time. Source: Internet
“If I had to make one at a time I’d never get anything done, but I would approximate about 1-2 hours per gown to do it right. Source: Internet
Add 4 eggs to the mixture, one at a time. Source: Internet