1) Медицина: Can't Add, Doesn't Even Try (Assessment acronym for the numerically and motivationally challenged)
2) Военный термин: Can't Add, Doesn't Even Try, city air defense evaluation tool, computer-aided design and electrical test
3) Образование: Children Aspiring To Develop Engineering Talent
Универсальный англо-русский словарь. Академик.ру. 2011.