| johnson grass | <botany> A tall perennial grass (Sorghum Halepense), valuable in the Southern and Western States for pasture and hay. The rootstocks are large and juicy and are eagerly sought by swine. Synonym: Cuba grass, Means grass, Evergreen millet, and Arabian millet. Origin: Named after W. Johnson of Alabama, who planted it about 1840-1845. Source: Websters Dictionary (01 Mar 1998) |
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| Johnson, Harry | <person> U.S. Dentist. See: Johnson's method. (05 Mar 2000) |
| Johnson's method | A method of filling the root canals of teeth by dissolving gutta-percha cones in a chloroform-rosin medium within the root canal. Synonym: Callahan's method, Johnson's method. (05 Mar 2000) |
| Johnson, Treat Baldwin | <person> U.S. Chemist, 1875-1947. See: Wheeler-Johnson test. (05 Mar 2000) |
| floppy baby syndrome | <syndrome> A general medical reference to an abnormal condition of newborns and infants manifest by inadequate tone of the muscles. Hypotonia (inadequately toned muscles resulting in floppiness) in the newborn period and infancy can be due to a multitude of different neurologic and muscle problems. (12 Dec 1998) |