verb
coagulate
koh-AG-yuh-layt/kəʊˈæɡjuleɪt/
To change or cause a liquid to change into a thick or solid mass.
The milk coagulates into white curds surrounded by pale whey.

Etymology
The Latin verb for causing curdling came from a verb meaning 'collect' or literally 'drive together.' The image is of liquid matter gathering into a thickened mass.
In context
a rennet addition which will coagulate the milk and you let it sit undisturbed so it sets and makes similar to like a pudding non-liquid form
More examples
- The added acid coagulates the warm milk.
- The egg whites begin to coagulate as they heat.
- The milk has coagulated into soft curds.
Forms
coagulate · coagulates · coagulated · coagulating
coagulation noun — The thickening of liquid into a mass.
coagulant noun — A substance that causes liquids to coagulate.