Sesquipedalianism is a linguistic style that involves the use of long words.

Dermatologic(al) sesquipedalianism ☆ ☆☆
Consistent Sesquipedalianism Update
The Illocutionary Side of Argumentation with Humor in Media Infotainment
Marketing and Literature: The Anxiety of Academic Influence
An Analysis of Neologism Creation Processes in Texts from Spain and Latin America Included in CORPES XXI ?
On the Counterverbality of ‘Nonverbal’ as a Verbal Term
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Historical perspectives on autism: its past record of discovery and its present state of solipsism, skepticism, and sorrowful suspic...
Wool gathering and the longest word
Incubus