We found 2 dictionaries that define the word arachnidology:

General (2 matching dictionaries)

1. arachnidology, arachnidology: Merriam-Webster
2. arachnidology: Wiktionary

Definitions from Wiktionary (arachnidology) ▸ noun:  The scientific study of arachnids. ▸ Words similar to arachnidology ▸ Usage examples for arachnidology ▸ Idioms related to arachnidology ▸ Wikipedia articles (New!) ▸ Popular adjectives describing arachnidology ▸ Words that often appear near arachnidology ▸ Rhymes of arachnidology ▸ Invented words related to arachnidology