subbase

== English == === Etymology === From sub- +‎ base. === Noun === subbase (plural subbases) (architecture) The lowest projecting part of a baseboard, a pedestal or a similar construct. (civil engineering) The lowest course in typical road, driveway, path or sports court construction, above which is the base course, and finally the surface course. (mathematics) A certain subcollection of a topological space ==== Antonyms ==== surbase ==== Hypernyms ==== base ==== Translations ==== ==== See also ==== subbase on Wikipedia.Wikipedia