Can the word "dehydration" imply "thirsty"? [closed]

I am thirsty is not equivalent to I am dehydrated.

Thirst is a symptom that you've already dehydrated.

The American Heritage Science Dictionary defines dehydration as:

A condition caused by the excessive loss of water from the body, which causes a rise in blood sodium levels. Since dehydration is most often caused by excessive sweating, vomiting, or diarrhea, water loss is usually accompanied by a deficiency of electrolytes. If untreated, severe dehydration can lead to shock.

Scientifically, we don't feel thirsty when it's cold and we don't drink as much, but we are still dehydrating (respiratory fluid loss through breathing).

No.

The word “dehydration” does NOT imply thirsty. Cause does not imply effect. Cause may lead to effect, or may not, depending on other factors.

You could be thirsty without being dehydrated in the technical sense. And you might be dehydrated without realizing it and probably not at all thirsty.