/ay'bee see dair"ee euhn/ , n.
1. a person who is learning the letters of the alphabet.
2. a beginner in any field of learning.
adj.
3. of or pertaining to the alphabet.
4. arranged in alphabetical order.
5. rudimentary; elementary; primary.
Also, abecedary .
[ 1595-1605; abecedarianus. See ABECEDARY, -AN ]