flat-bottom

comparative more flat-bottom · superlative most flat-bottom

1. alternativeAlternative form of flat-bottomed.

   The axle-pulleys should be not less than two-and-a-half-inch wheels with flat-bottom channels or grooves.

   1897, Francis C[ruger] Moore, “The Comforts of Home”, in How to Build a Home: The House Practical; Being Suggestions as to Safety from Fire, Safety to Health, Comfort, Convenience, Durability, and Economy, New York, N.Y.: Doubleday & McClure Co., →OCLC, page 60

   2 more examples

   Two standard types of flat-bottom track were introduced as early as 1949, and some 1,570 miles had been laid down to the end of 1950.

   1951 April, D. S. Barrie, “British Railways: A Survey, 1948-1950”, in Railway Magazine, number 600, page 225

   With secondhand bullhead rail almost unobtainable, the NYMR has been forced to go for new flat-bottom rail and orders are being placed; 58 fb rails are already en route to the railway.

   1979 August, Michael Harris, “A line for all reasons: the North Yorkshire Moors Railway”, in Railway World, page 412