subbase

[ suhb-beys ]
/ ˈsʌbˌbeɪs /

noun

Architecture. the lowest part of a base, as of a column, that consists of two or more horizontal members.
Mathematics. a collection of subsets of a topological space having the property that every open set of a given topology can be written as the union of intersections of finite numbers of sets in the collection. Compare base1(def 13b).

Origin of subbase

First recorded in 1820–30; sub- + base1

OTHER WORDS FROM subbase

sub·ba·sal, adjective

Words nearby subbase

subatomic particles, subaudition, subauricular, subaxial, subaxillary, subbase, subbasement, subbass, subbing, subbranch, subbuteo

British Dictionary definitions for subbase

subbase
/ (ˈsʌbˌbeɪs) /

noun

the lowest part of a pedestal, base, or skirting Compare surbase