The phrase "are largely characterized" is correct and usable in written English.
It can be used to describe the predominant features or qualities of a subject or phenomenon.
Example: "The species are largely characterized by their vibrant colors and unique mating rituals."
Alternatives: "are mainly defined by" or "are primarily marked by".
Watersheds in our study area, which are largely characterized by Neogene or Paleogene volcanic rocks (andesite), retained their high permeability.
While the cell types involved in both atherosclerosis and vessel renarrowing after surgical intervention are largely characterized, current research has shown that components of the extracellular matrix are also important in the pathogenesis of the aforementioned processes.
Graduate psychology programs, which reflect the larger society, are largely characterized by ethnocentric monoculturalism.
Though attitudes towards death in contemporary American culture are largely characterized by fear, Native American cultures traditionally accept death as a fact of life.
These results suggest that stricter control over glycolytic flux developed in metazoans, whose somatic cells are largely characterized by slow proliferation.
In general, tumors [ 2] have genomic abnormalities that are largely characterized by copy number alterations.
-- The hearing itself, though, was largely characterized by a messy and, at times, absurd argument over process and precedent.
The Uruguayan landscape is largely characterized by gently rolling land, with an average elevation of about 383 feet (117 metres).
Ferguson's career, though marked by a range of interests in language, was largely characterized by a focus on applied linguistics.
In both countries public engagement is largely characterized by perceptions of insufficient information, and insufficient influence on the process.
Sherborne is largely characterized by its abundance of elderly, wealthy and well-educated inhabitants, many of whom held high-powered jobs in the City before retirement.
