marcadores

Marcadores is the plural form of marcador in Spanish and can refer to several related concepts that serve to designate, identify, or annotate objects, signals, or data. In everyday use, marcadores are writing instruments designed to leave a visible mark on various surfaces. They include permanent markers with alcohol- or solvent-based inks, dry-erase or whiteboard markers with erasable ink, and specialized markers such as paint markers or fluorescent markers. Common applications range from labeling packages and artworks to classroom use and industrial marking. Safety considerations include avoiding inhalation of fumes, protecting skin, and proper disposal due to chemical contents.

In science and research, marcadores are indicators used to identify or track specific biological or genetic features. Molecular markers, or marcadores moleculares, are DNA sequences with known locations in the genome that help identify individuals, species, or traits. They underpin genetic mapping, paternity testing, forensics, biodiversity studies, and marker-assisted selection in agriculture. Biomarkers, or marcadores biológicos, refer to measurable indicators of biological states or conditions, such as proteins, metabolites, or genes, and are used in clinical diagnostics, prognosis, and treatment monitoring.

The term is also employed in other fields to denote indicators or reference points. For example, in information systems and publishing, markers can indicate positions, highlights, or milestones within documents or datasets. Although the exact meaning of marcadores depends on the context, the common thread is their function as tangible or measurable references that help locate, identify, or assess something.