The phrase "accessory material" is correct and usable in written English.
It can be used to refer to supplementary items or resources that enhance or support a primary subject or item.
Example: "The textbook comes with a variety of accessory material, including worksheets and online resources to aid student learning."
Alternatives: "supplementary material" or "additional resources".
Volumes in this series are designed to be adopted as classroom textbooks and are often augmented with accessory material available from the Web.
We found no olivine phenocryst in "partly-altered" lava particles (accessory material), in contrast to olivine-bearing "fresh lava" particles (Subsection 5.1.1).
Furthermore, we show that the bulk ash composition and free-crystal ash component change at the onset of magmatic eruption in January 2011, because of the contrast between newly erupting magma and past ejecta supplying accessory material.
Aside from examining juvenile material and related petrological and textural investigations (Taddeucci et al., 2004), another benefit of monitoring ash production comes from study of the accessory material, i.e., the ash particles derived from the volcanic edifice.
The choice of the type of techniques to be used depends on the purpose of the research and on the availability of ground truth data, accessory material and knowledge of the studied area.
With reference to St George and the Dragon in particular, art historian Mark W. Roskill comments that "The accessory material of landscape [in Altdorfer's work] is played with and ornamentally elaborated so that it reverberates with the sense of a sequestered and inhospitable environment".
The present study used micro- and nanoparticles of TiO2 and microparticles of different materials (BaSO4, Cr, CuO, diamond, Au, PbO and ZnS) to investigate the phenomena underlying the role of accessory materials for optrode performance enhancement.
Raman and LIBS analyses gather complementary compositional data, molecular and elemental respectively, which, taken jointly, enable, in most cases, identification of pigments and accessory materials in paint layers, providing also stratigraphic information.
Variation in the pathogenic phenotype of B. pseudomallei natural isolates could reflect either the loss or acquisition of accessory genetic material through horizontal gene transfer events, which may confer functional diversity among individual strains.
The P. aeruginosa genome is rich in accessory genetic material.
B. hyodysenteriae and B. pilosicoli are both more specialized pathogens that have less accessory genetic material and diversity.
