archaebacteria

bacteriology

bacteriologist

earth, land, ground / a place, a region, a piece of land / territory, dominion / (of a crate, etc.) the bottom / (printing, of a page) the bottom margin

earth; ground

the ground / earth, dirt, mud, soil / the earth (as opposed to the heavens) / the ground or bottom of something (as of a price range)

place, area

a colony (region or governmental unit)

intestinal bacteria

(economics) real economic growth rate