noun
- plural of urea; crystalline compounds found in urine and used in fertilizers and plastics
Usage: chemistry; biology
Examples
- The laboratory analyzed different ureas in the soil samples.
- Various ureas are used as nitrogen sources in agricultural fertilizers.
- The chemist studied the properties of synthetic ureas.
- These ureas help plants absorb essential nutrients.
- Industrial ureas are manufactured for plastic production.
- The researcher compared natural and artificial ureas.