thalasso-, thalass-, thalassi-, thalassio-, thalatto-, thalatt- +

(Greek: sea, ocean)

Traditionally, there are five oceans: the Atlantic, the Pacific, the Indian, the Arctic, and the Antarctic. The Antarctic Ocean, lacking any precise natural boundaries, is sometimes considered an extension of the Atlantic, the Pacific, and the Indian oceans.

The adjacent bodies of salt water and various subdivisions of the oceans are generally known as seas, but local usage may also sanction such terms as gulfs, bays, channels, and straits; designations that are sometimes used interchangeably.

thalassographic, thalassographical, thalassographer
Oceanography; the branch of oceanography that studies the sea, its configurations and phenomena.
thalassography, thalassograph
The branch of physical geography that deals with the sea, its configuration and phenomena; oceanography.
thalassoid
Freshwater organisms resembling, or originally, marine forms; halolimnic (marine organisms modified to live in fresh water).
thalassomania
1. An intense fascination with or interest in the sea.
2. An abnormal love of the sea.
thalassometer
A tide gauge; measuring the tides.
Thalassonomosaurus
A “sea-living lizard” from Late Cretaceous North America. Named by U. S. paleontologist Samuel Paul Welles in 1943.
thalassophile
Inhabiting the sea or its shore; fond of the sea.
thalassophilic
In biology, a preference for the sea or dwelling in the sea.
thalassophobia (s) (noun) (no plural)
An excessive aversion of the sea: Peter never liked going anywhere by boat because he had thalassophobia and was alarmed not only by the distance from land, but was also terrified of the waves, and the extensive emptiness of the ocean.
thalassophobic (adjective); more thalassophobic, most thalassophobic
Regarding someone who has an excessive fear of very large bodies of water: Being a thalassophbobic person, Flora usually went by train when she was traveling, or by car, but never with a boat because she hated the huge waves and being so far away from land!
thalassophyte
A marine plant; such as, seaweed or marine alga.
thalassoplankton
1. Marine planktonic organisms.
2. Occurring in the open ocean.
thalassoposia
Drinking sea water.
thalassoseisma
An earthquake at sea or a seaquake.
thalassostatic
Relating to a lower portion of a river subject to tidal influences.

Inter-related cross references, directly or indirectly, involving the "sea" and the "ocean" bodies of water: abysso- (bottomless); Atlantic; batho-, bathy- (depth); bentho- (deep, depth); halio-, halo- (salt or "the sea"); mare, mari- (sea); necto-, nekto- (swimming); oceano-; pelago- (sea, ocean); plankto- (drifting).