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. 2017 Apr 29;113(7):725–736. doi: 10.1093/cvr/cvx070

Table 1.

Glossary of terms

Term Definition
Genetics Study of specific, individual genes, and their role in inheritance.
Genomics Study of genes, their functions, and biological effects.
Functional genomics Study of changes in gene products (transcripts, proteins, metabolites) and how these changes mediate normal and abnormal biological function.
Comparative genomics The study to compare the genes in one organism with those of another.
Epigenetics The study of processes that lead to heritable changes in gene expression without changes in the DNA sequence.
Epigenomics Study of epigenetic modifications across the genome.
Epitranscriptomics Study of post-transcriptional RNA modifications not involving a change in the ribonucleotide sequence.
Gene expression The study of mechanisms translating information encoded by a gene into RNA structures or proteins.
Transcriptomics The study of the complete set of RNA transcripts that are produced by the genome under specific conditions.
Omics Suffix added to the names of many fields to denote studies undertaken on a large or genome-wide scale.
Proteomics The study of the complete set of translated proteins within a biological sample under particular circumstances.
Metabolomics Quantitative study of all intermediary metabolites in a given biological state.
Phenome The whole set of phenotypic entities in an organisms.
Diseasome All molecular or phenotype-based relationships between diseases observed in an organism.