| D009041 |
Motion Sickness |
Disorder caused by motion. It includes sea sickness, train sickness, roller coaster rides, rocking chair, hammock swing, car sickness, air sickness, or SPACE MOTION SICKNESS. Symptoms include nausea, vomiting and/or dizziness. |
Airsickness,Carsickness,Seasickness,Air Sickness,Car Sickness,Sea Sickness,Sickness, Air,Sickness, Car,Sickness, Motion,Sickness, Sea |
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| D009792 |
Oceans and Seas |
A great expanse of continuous bodies of salt water which together cover more than 70 percent of the earth's surface. Seas may be partially or entirely enclosed by land, and are smaller than the five oceans (Atlantic, Pacific, Indian, Arctic, and Antarctic). |
Seas,Oceans,Seas and Oceans |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D012767 |
Ships |
Large vessels propelled by power or sail used for transportation on rivers, seas, oceans, or other navigable waters. Boats are smaller vessels propelled by oars, paddles, sail, or power; they may or may not have a deck. |
Boats,Hospital Ships,Boat,Hospital Ship,Ship,Ship, Hospital,Ships, Hospital |
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