A synonym for the word "arachnology" is "spider biology." Arachnology is the study of arachnids, which include spiders, scorpions, ticks, and mites. Another synonym for arachnology is "arachnidan biology," which refers to the study of the order Arachnida. Arachnologists study the anatomy, behavior, distribution, evolution, and classification of these arthropods. They also investigate the ecological role of spiders and their impact on other organisms in their habitat. Arachnology is a fascinating field that helps humans better understand the natural world and the intricate relationships between different species.