In succession.

synoniem: one by one.

Roget 79: specially, especially, particularly etc. adj.; in particular, in propria persona [Lat.]; ad hominem [Lat.]; for my part.    each, apiece, one by one, one at a time; severally, respectively, each to each; seriatim, in detail, in great detail, in excruciating detail, in mind-numbing detail; bit by bit; pro hac vice [Lat.], pro re nata [Lat.].    namely, that is to say, for example, id est, exemplia gratia [Lat.], e.   g., i.   e., videlicet, viz.   ; to wit.    ... meer laten zien

Roget 87: singly etc. adj.; alone, by itself, per se, only, apart, in the singular number, in the abstract; one by one, one at a time; simply; one and a half, sesqui-^†.    ... meer laten zien