Definition of 'Uptrend'
Describes the price movement of a financial asset when the overall direction is upward. A formal uptrend is when each successive peak and trough is higher than the ones found earlier in the trend.
Notice how each successive peak and trough is located above the previous ones. For example, the peak at Point 4 is higher than the peak at Point 2. The uptrend will be deemed broken if the next low on the chart falls below Point 5.
Uptrend is the opposite of downtrend
Investopedia explains 'Uptrend'
The goal of most technical traders is to identify a strong uptrend and to profit from it until it reverses. Selling an asset once it has failed to create a new peak or trough is one of the best ways to avoid the large losses that can result from a reversed trend. Many technical traders will also draw trendlines to identify an uptrend and will use this tool as a guide for when to sell as it can also be an early indication of a trend reversal.