Questions & Answers about Bu ders uygulamalı.
uygulamalı = uygulama (noun: “application”/“practice”) + the adjectival suffix -lı (“with”/“having”).
Literally it means “with practice,” hence “practical.”
The last vowel of uygulama is a, a back, unrounded vowel. According to 4-way vowel harmony, the suffix takes the back, unrounded form -lı.
So uygulama + -lı → uygulamalı.
In Turkish, the formal copula -dır/-dir can be dropped in everyday speech and writing when the meaning is clear.
Thus uygulamalıdır (“it is practical”) becomes simply uygulamalı.