HEENT stands for Head, Eyes, Ears, Nose, and Throat (medical) Suggest new definition. This definition appears somewhat frequently and is found in the following Acronym Finder categories: Science, medicine, engineering, etc.
Bacteria are microscopic organisms that comprise the domain Eubacteria. A domain is the highest grouping of organisms, superseding the level of kingdom in the classical Linnaean system of biological classification.
domain Bacteria. Kingdom names are not presently being used in this domain. These are part of the large group of organisms commonly called bacteria.. They include the blue-green algae (= cyanobacteria), purple sulfur bacteria, etc., as well as most of the more familiar decomposing and disease-causing bacteria.