methylolurea

\\| ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷\ noun

Etymology: methylol + urea

: either of two compounds formed as the first stage in making urea-formaldehyde resins:

a. : a crystalline compound H₂NCONHCH₂OH obtainable from one mole each of urea and formaldehyde and used especially for impregnating wood with which it forms hard resins — called also monomethylolurea

b. : dimethylolurea