Definition of "rooter"
rooter1
noun
plural rooters
(by extension) A type of heavy machinery similar to a plow for breaking up soil, concrete, asphalt, etc.
Quotations
The five rooters or plows are so fastened in the frame that any one or all can be removed if desired, and each rooter is provided with a removable point, which can be taken off and sharpened without removing the entire rooter from the from the frame.
1920, Halbert Powers Gillette, Earthwork and Its Cost: A Handbook of Earth Excavation, page 122
Under difficult soil conditions, rooters that work on the same principle as subsoilers are used. Rooters are larger, heavier, and more sturdily built than subsoilers and can loosen the soil up to a depth of 1 meter ( 3.3 ft ) (Fig. 4-6).
1968, Amihud Y. Goor, Charles Wesley Barney, Forest Tree Planting in Arid Zones, page 173
(woodworking) A blade for producing a narrow groove in a piece of wood.
Quotations
In cutting across the grain a small steel cutter, No. 10, must first be used in a similar manner, moving the strip of wood which acts as a gauge, to cut the second line exactly the same width as the "rooter" blade; the "rooter" is then used as before, when the piece between the two lines made by the cutter will be neatly removed without leaving a burr, which would not be the case if the "rooter" was alone used across the grain.
2023, William Bemrose, Manual of Buhl-Work and Marquetry, page ii
One who holds a primary or founding position in an enterprise.
Quotations
In today's context, any fair review of the "rooters" who contributed to the development of ergonomics and human factors would certainly include references to Earl A. Alluisi, because of his influence on the development of research area, academic programs, professional organizations, and individuals who have shaped the field.
2006, Waldemar Karwowski, International Encyclopedia of Ergonomics and Human Factors, page 3404
rooter2
noun
plural rooters
(US, slang) One who roots for, or applauds, something.
Quotations
Then, as the victorious team, streaming and slimy with mud, was borne by, literally in the arms of the populace, in a bit of momentary abstraction the beat wildly upon the thing nearest at hand, which happend to be the top of a blue and gold rooter's hat, beneath which, naturally enough, was the head of the aforementioned rooter.
1901, “The Regeneration of a Rooter”, in California Occident, volume 41, page 399
In my country a mythology exists concerning the rooter. Great names, great deeds, great passions, great fights, and great deaths from heart attacks are the landmarks on the battlefield of a sport incorporated in Brazilian folklore. However, the different types of rooters are more interesting to the psychologist than soccer folklore proper.
1970, Gerald S. Kenyon, Tom M. Grogg, Contemporary Psychology of Sport, page 308
This was the Lawrencetown team and rooters, arriving for the fray. Led by the band the rooters gathered in a column four abreast and started to parade around the campus, later turning in the direction of the baseball diamond where they took up their section of the bleachers and forthwith began to hurl challenges at the now crowded buff and blue stands along third base line.
2023, Ambrose Bierce, Staley Fleming's Hallucination