The phrase
"slight irregularities" means small and minor inconsistencies or differences that are not considered significant.
Full definition
I recall my days as a student, learning about muscle imbalance and which muscles perform specific movements, and the imbalances that cause
slight irregularities in gait.
This pervasive radiation
contains slight irregularities where regions of compression or expansion in the early universe caused the microwaves to appear slightly hotter or cooler than average.
It can range in seriousness from
a slight irregularity in the dogs walking style to crippling the dog completely.
Shiff relishes
the slight irregularities he detects in the earliest paintings before she began getting studio assistants to execute her work.
It is here again that Walsh's painting by hand gives the works their particular feel, using
the slight irregularity as an optical effect in itself, softer and fuzzier than a Bridget Riley Op painting, but more aggressively illusionistic than, say, a Rothko.
The illusion of rotation that
the slight irregularities produce is heightened by this change.