English Reference
noun

genetics

n.
US /dʒəˈnɛtɪks/ UK /dʒɛnˈɛtɪks/ ge·net·ics

  1. 01 B2 Upper Intermediate Academic Science

    the branch of science that studies how traits like eye colour or height are passed from parents to children.

    the branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

    Simple

    She decided to study genetics because she was interested in how DNA works.

    In context

    Advances in molecular genetics have allowed researchers to identify specific markers associated with various hereditary conditions.

    Usage

    Treated as a singular noun when referring to the scientific discipline.

    Pitfall
    The genetics are a difficult subject. Genetics is a difficult subject.

    When referring to the field of study, 'genetics' takes a singular verb.

    hereditygenomics
  2. 02 C1 Advanced Technical Science

    the specific set of genes that a person or animal has.

    the genetic properties or makeup of a specific individual, group, or species.

    Simple

    Your genetics can play a big role in how your body reacts to certain foods.

    In context

    The unique genetics of this isolated population provide a rare opportunity to study the long-term effects of genetic drift.

    Usage

    Can be treated as plural when referring to the individual traits of a person.

    genetic makeupgenotype

To collect the tissue samples necessary to analyze the baobab's genetics, Karimi had to navigate to remote parts of Madagascar and locate the trees.

Phys.org· 14 Aug 2026

A massive new analysis suggests that genetics alone can’t explain it—and the real secret may lie in other traits unique to these insects.

ScienceDaily· 15 Aug 2026

From Ancient Greek γένεσις (génesis, “origin”). Coined by English biologist William Bateson in 1905 in a letter to zoologist Adam Sedgwick, and first used publicly by Bateson at a lecture to the International Conference on Plant Hybridization in 1906.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Ancient Greek γένεσις
Level B2 · Upper Intermediate
Frequency Frequent
Updated