buttressing


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buttressing

a phenomenon of osteoarthritis in which osteophytes at the hip joint extend across the femoral neck inferior to the femoral head and combine, with a proliferation along the medial aspect of the femoral neck.
References in periodicals archive ?
Mean allocation of phytomass to buttressing (Table 2) is lower in the dry plantation site and among the cohort of nine younger trees in form C at the Big Cypress Access Area (Table 2, last column).
The increase in crown diameter of an individual tree tended to be correlated with an increase in the buttressing support ratio, suggesting the importance of gravitational forces in determining the relative size of buttressing.
Tree buttressing of form B, high buttresses, is dominant at Mermet Lake, which has nearly-permanent flooding and fluctuations in the water level.
Thus past hydrological regimes apparently favored baldcypress regeneration where water levels reached zero at Big Cypress Areas and influenced buttressing form.
This suggests the probable importance of age in concert with hydrological factors in determining the maximum values of buttress support ratios in old-growth forests, but greater influence of site hydrology on buttressing form and support ratio in younger stands.
Range of height/(diameter at ground level - diameter above buttressing) ratios was used to quantitatively classify buttressing forms for this study according to the forms described by Mattoon (1915).