Answer:
It is a manifestation that is noted by an observer.
Explanation:
Symptoms are<em> subjective</em> while "signs" are <em>objective. </em>
For example, if a patient complains of a<em> headache, body pain</em> and<em> dizziness</em>, these are considered subjective because<em> the observer cannot feel what he's feeling.</em> Therefore, these are considered symptoms.
If the physician checks the patient's temperature and found it to be high <em>(39°C),</em> then this is now considered a sign because <u>it is noted by an observer</u>. Other examples of signs are: <em>heart rate, pulse rate, urine output, etc.</em>