GLOSSARY OF TERMS 105 
study of bacteria from foods. The following glossary of terms has 
been taken from the back of the 1912 Chart: 
GLOSSARY OF TERMS 
Adherent, applied to sporangium wall, indicates that remnants of sporangium 
remain attached to endospore for some time. 
Aerobic, growing in the presence of free oxygen; strictly aerobic, growing only 
in the presence of free oxygen. 
Ameboid, assuming various shapes like an ameba. 
Amorphous, without visible differentiation in structure. 
Arborescent, a branched, tree-like growth. 
Anaerobic, growing in the absence of. free oxygen; strictly anaerobic growing 
only in the absence of free oxygen; facultative anaerobic, growing both in 
presence and absence of free oxygen. 
Beaded, in slat or stroke culture, disjointed or semi-confluent colonies along the 
line of inoculation. | 
Bipolar, at both poles or ends of the bacterial cell. 
Brief, a few days, a week. 
Brittle, growth, dry, friable under the platinum needle. 
Bullate, growth rising in convex prominences, like a blistered surface. 
Butyrous, growth of a butter-like consistence. 
Chains, four or more bacterial cells attached end to end. 
Chromogenesis, the production of color. | 
Ciliate, having fine hair-like extensions, sometimes not visible to the naked 
eye, resembling cilia. 
Clavate, club shaped. | 
Cloudy, said of fluid cultures which might indicate growth. 
Coagulation, the separation of casein from whey in milk. 
Contoured, an irregular, smoothly undulating surface, like that of a relief map. 
Convex, surface the segment of a sphere. | | 
Coprophyl, dung bacteria. 
Coriaceous, growth tough, leathery, not yielding to the platinum needle. 
Crateriform, a saucer shaped liquefaction of the medium. 
Crecateous, growth opaque and white, chalky. 
Cuneaie, wedge-shaped. | 
Curled, composed of parallel chains in wavy strands, as in anthrax colonies. 
Diastatic action, conversion of starch into simpler carbohydrates, such as dex- 
trins or sugars, by means of diatase. - 
Echinulate, a growth along line of inoculation with toothed or pointed margins. 
Effuse, growth thin, veily, unusually spreading. — | 
Endospores, thick-walled spores formed within the bacterial cell; i. é., | typical 
bacterial spores like those of B. anthracis or B. subtilis. 
Entire, with an even margin. _ 
Erose, border irregularly toothed. 
