Grid"i`ron (?), n. [OE. gredire, gredirne, from tthe same source as E. griddle, but the ending was confused with E. iron. See Griddle.]
1.
A grated iron utensil for broiling flesh and fish over coals.
2. Naut.
An openwork frame on which vessels are placed for examination, cleaning, and repairs.
3. Sport
A football field.
Gridiron pendulum. See under Pendulum.
-- Gridiron valve Steam Engine, a slide valve with several parallel perforations corresponding to openings in the seat on which the valve moves.
© Webster 1913.