the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to a tentacle or tentacles.
The Century Dictionary and Cyclopedia
Of or pertaining to a tentacle, in any sense; of the nature, structure, function, or appearance of a tentacle; adapted or used as a tactile organ; tentaculiform: as, tentacular character, movements, or formation.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or resembling tentacles
Word Usage
"It features an essay on the "tentacular" and quantum vampires by China Mieville, poems by Michel Houellebecq, and photos of dead monkeys by Thomas Ligotti."