[ep-i-jee-nohm] /ˌɛp ɪˈdʒi noʊm/
Genetics. a network of chemical compounds surrounding DNA that modify the genome without altering the DNA sequences and have a role in determining which genes are active in a particular cell.
[ep-i-jee-noh-miks, -nom-iks] /ˌɛp ɪ dʒiˈnoʊ mɪks, -ˈnɒm ɪks/ noun, (used with a singular verb) 1. Genetics. the study of epigenomes and their role in gene expression.
[ih-pij-uh-nuh s] /ɪˈpɪdʒ ə nəs/ adjective, Botany. 1. growing on the surface, especially the upper surface, as fungi on leaves. /ɪˈpɪdʒɪnəs/ adjective 1. (biology) growing on the surface, esp the upper surface, of an organism or part: an epigenous fungus
[ep-i-jee-uh s] /ˌɛp ɪˈdʒi əs/ adjective, Botany. 1. growing on or close to the ground. 2. (of cotyledons) lifted above ground in germination. /ˌɛpɪˈdʒiːəs/ adjective 1. a variant of epigeal epigeous (ěp’ə-jē’əs) Relating to the germination of a seed in which the cotyledons emerge above the surface of the ground. Compare hypogeous.
- Epiglottic cartilage
epiglottic cartilage n. A thin lamina of elastic cartilage forming the central portion of the epiglottis.