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Water turned back in its course by an obstruction, an opposing current , or the flow of the tide, as in a sewer or river channel, or across a river bar.

The forests or partly cleared grounds on the frontiers.

A men living in the forest in or beyond the new settlements, especially on the western frontiers of the older portions of the United States. Fisher Ames.

A disease of hawks. See Filanders. Wright.

The back and sides of a pig salted and smoked; formerly, the flesh of a pig salted or fresh. Bacon beetle (Zoöl.), a beetle (Dermestes lardarius) which, especially in the larval state, feeds upon bacon, woolens, furs, etc. See Dermestes. -- To save one's bacon, to save one's self or property from harm or less. [Colloq…

Of or pertaining to Lord Bacon, or to his system of philosophy. Baconian method, the inductive method. See Induction.

See Bacterium.

Of or pertaining to bacteria.

Destructive of bacteria.

Same as Germicide.

A bacterial vaccine.

Of or pertaining to bacteriology; as, bacteriological studies.

One skilled in bacteriology.

The science relating to bacteria.

Chemical decomposition brought about by bacteria without the addition of oxygen.

Relating to bacterioscopy; as, a bacterioscopic examination.

One skilled in bacterioscopic examinations.

The application of a knowledge of bacteria for their detection and identification, as in the examination of polluted water.

lly in the form of a jointed rodlike filament, and found in putrefying organic infusions. Bacteria are destitute of chlorophyll, and are the smallest of microscopic organisms. They are very widely diffused in nature, and multiply with marvelous rapidity, both by fission and by spores. Certain species are active agents…

Resembling bacteria; as, bacteroid particles.