[greyl] 
| 1. | (usually initial capital letter ) Also called Holy Grail. a cup or chalice that in medieval legend was associated with unusual powers, esp. the regeneration of life and, later, Christian purity, and was much sought after by medieval knights: identified with the cup used at the Last Supper and given to Joseph of Arimathea. |
| 2. | (sometimes initial capital letter) Informal. any greatly desired and sought-after objective; ultimate ideal or reward. |
| grail (grāl) n.
[Middle English greal, from Old French graal, from Medieval Latin gradālis, flat dish.] |
GRAIL
Graphical Input Language.
A flow chart language entered on a graphics tablet. The graphical follow-on to JOSS.
["The GRAIL Language and Operations", T.O. Ellis et al, RM-6001-ARPA, RAND, Sept 1969].
(1995-01-23)