Pronunciation: ˌ a- ˌ rak- ' nä-l ə -jist, ˌ er- ˌ ak-
Function: noun
Date: 1816
: a person who specializes in the study of spiders and other arachnids
– arach · no · log · i · cal \ -n ə - ' lä-ji-k ə l \ adjective
– arach · nol · ogy \ - ' nä-l ə -j ē \ noun