Of or relating to seas or oceans, especially smaller or inland seas.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "thalassic" in a sentence
"Like all Mendelkinder, I was genetically programmed to be a first colonist -- in my case on the first newly discovered pan-thalassic world that needed colonization and development."
"He shook his head; and I, recalling the crimson chamber in his castle, speculated upon his living arrangements in thalassic caverns I could scarcely conceive."
"The North Zirks have ridden all the way around it, on hipposaur-back, in the high latitudes, and the thalassic peoples at the Equator have sailed all the five equatorial seas and portaged all the isthmuses between."