arach·nol·o·gist
ˌa-ˌrak-ˈnä-lə-jist 
ˌer-ˌak-
: a person who specializes in the study of spiders and other arachnids
arach·nol·o·gy
ˌa-ˌrak-ˈnä-lə-jē
ˌer-ˌak-
ˌer-ˌak-
plural -es
: the branch of zoology that deals with spiders and other arachnids
arachnological
ˌa-ˌrak-nə-ˈlä-ji-kəl
adjective
ˌer-ˌak-
arachnological research
There is a glossary of arachnological terms, and the index, although short, is sufficient.
—
Fritz Vollrath, Times Literary Supplement (London), 18 Jan. 1985
Fritz Vollrath, Times Literary Supplement (London), 18 Jan. 1985
Examples of arachnologist in a Sentence
Recent Examples on the Web
Jake Buehler,
Scientific American,
21 May 2026
For decades, arachnologists debated the actual purpose of stabilimenta, a special thread spiders weave into their webs.
—
Maria Mocerino,
Interesting Engineering,
2 Nov. 2025
In 2015, arachnologists Yuri M. Marusik and Alireza Zamani named a new spider species discovered in Iran Filistata maguirei as a tribute to Maguire's time in the Spidey suit, per ScreenRant.
06 of 19
Andrew Garfield
Maguire isn't the only Spider-Man actor with his own eight-legged species.
—
Kelli Bender,
People.com,
1 Dec. 2024
Their strategy is so sophisticated that some arachnologists assert the spiders show signs of planning and problem solving.
—
Sam Walters,
Discover Magazine,
3 Jan. 2024
See All Example Sentences for arachnologist
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Noun
Some of the earliest evidence challenging that idea came in 2008, when García’s co-author Osvaldo Villarreal—an arachnologist at the Venezuelan Institute for Scientific Research—and other researchers reported a harvestman chowing down on a rain frog in a Venezuelan national park.
—
Jake Buehler,
Scientific American,
21 May 2026
For decades, arachnologists debated the actual purpose of stabilimenta, a special thread spiders weave into their webs.
—
Maria Mocerino,
Interesting Engineering,
2 Nov. 2025
In 2015, arachnologists Yuri M. Marusik and Alireza Zamani named a new spider species discovered in Iran Filistata maguirei as a tribute to Maguire's time in the Spidey suit, per ScreenRant.
06 of 19
Andrew Garfield
Maguire isn't the only Spider-Man actor with his own eight-legged species.
—
Kelli Bender,
People.com,
1 Dec. 2024
Their strategy is so sophisticated that some arachnologists assert the spiders show signs of planning and problem solving.
—
Sam Walters,
Discover Magazine,
3 Jan. 2024
See All Example Sentences for arachnologist
Cite this Entry
“Arachnologist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arachnologist. Accessed 25 Jun. 2026.
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