Meaning of 一点一画 in Japanese

It seems that your search contains the following:

Definition of 一点一画

いってんいっかく(ittenikkaku) 【一点一画】

(n) the dots of i's and the crosses of t's; (not neglecting) the slightest details →Related words: 一点一画もおろそかにしない

いってんいっかくもおろそかにしない(ittenikkakumoorosokanishinai) 【一点一画もおろそかにしない】

(exp) always dot the i's and cross the t's; don't neglect the slightest detail; be punctilious