a. rare. [f. Gr. θάλασσα sea + -AL.] = THALASSIC (in quot. in sense 2).
1887. Proc. Boston Nat. Hist. Soc., 417. The time required for the accumulation of such a stratum in the thalassal seas is probably great.
a. rare. [f. Gr. θάλασσα sea + -AL.] = THALASSIC (in quot. in sense 2).
1887. Proc. Boston Nat. Hist. Soc., 417. The time required for the accumulation of such a stratum in the thalassal seas is probably great.
