development phase
nounUK /dɪˈvɛləpmənt feɪz/
US /dɪˈvɛləpmənt feɪz/
A time when something is growing or being made.
The caterpillar is in its development phase before it becomes a butterfly.
OTHER MEANINGS
2. A step in making a new product or game.
The new video game is still in its development phase.
3. A period when a person learns and gets better at something.
During his development phase as a pianist, he practiced every day.
4. A stage in a project when plans are turned into real work.
The team finished the development phase and started testing.