arizona white oak: semi-evergreen shrub or small tree of Arizona and New Mexico having acorns with hemispherical cups
white oak: any of numerous Old World and American oaks having 6 to 8 stamens in each floret, acorns that mature in one year and leaf veins that never extend beyond the margin of the leaf
phlogiston: a hypothetical substance once believed to be present in all combustible materials and to be released during burning