| Subject | Spanish | English |
| math. | análisis gráfico del fractil | fractile graphical analysis |
| stat. | fractil de orden alfa | fractile of order alpha |
| reliabil. | fractil de orden p | p-quantile of a probability distribution |
| reliabil. | fractil de orden p | p-fractile of a probability distribution |
| commun., IT | fractil p del tiempo de indisponibilidad | p-fractile down time |