threshold
A. -noun
1. (=doorway) umbral (m)
2. (figurative)   umbral (m), puertas feminine plural
·to be on the threshold of
·estar en el umbral or a las puertas de
·pain threshold
umbral (m) de dolor
·sound threshold
umbral (m) sonoro
·to have a low pain threshold
·tener poca tolerancia del dolor
B. -compound
·threshold agreement -noun convenio (m) de nivel crítico
·threshold price -noun   precio (m) umbral, precio (m) masculineínimo