ˈ ̷ ̷| ̷ ̷ adjective
: minutely exact or precise
this was split-hair stuff, this was walking tightrope on a split hair — Ira Wolfert
a real model railroad runs to a split-hair schedule — J.C.Furnas
ˈ ̷ ̷| ̷ ̷ adjective
: minutely exact or precise
this was split-hair stuff, this was walking tightrope on a split hair — Ira Wolfert
a real model railroad runs to a split-hair schedule — J.C.Furnas
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012