(Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous)

diageotropic (adjective), more diageotropic, most diageotropic
In botany, relating to, or exhibiting a growth movement in a plant or in an organ so that it assumes a position at right angles to the direction of gravity: Rose bushes are considered to be diageotropic in that their roots develop and spread crossways to the direction of the middle of the Earth.
diaphototropic (adjective)
A tendency of leaves or other organs of plants to have their outer surfaces facing towards the rays of light.
Relating to, of the nature of, or referring to, a diaphragm.
1. The name of that genus or scale of ancient Greek music in which the interval of a tone was used, the tetrachord being divided into two whole tones and a semitone (as in each half of the modern diatonic scale).
2. In modern music, denoting the scale which in any key proceeds by the notes proper to that key without chromatic alteration; hence, applied to melodies and harmonies constructed from such a scale.
diatropic (adjective), more diatropic, most diatropic
A reference to the tendency of certain plants or their parts to arrange themselves at right angles or sideways to a stimulus.
Involving or relating to the simultaneous stimulation of each ear with different sounds.
dielectric (adjective), more dielectric, most dielectric
1. A reference to material; such as, glass or porcelain with negligible electrical or thermal conductivity.
2. Pertaining to a substance or medium that can sustain a static electric field within it.
3. Relating to something that is a poor conductor of electricity, but an efficient supporter of electrostatic fields: Dielectric conditions can support an electrostatic field while dissipating minimal energy in the form of heat; frequently used in capacitors.
4. A type of insulator which becomes polarized when it comes in contact with an electrical field: The dielectric material can easily support an electrostatic field even though it is not a conductor of electricity.

Such dielectric materials are used in many places; such as, in capacitors and radios, as well as transmission lines for radio frequency and it can be used to store energy too, if it is configured properly.

Most of these dielectric materials are solid in nature, but some fluids and gasses also exhibit dielectric properties; such as gas is dry air, while examples of solid dielectric materials include mica, ceramic, plastics and glass and even distilled water is considered to be a dielectric liquid.

digastric (adjective), more digastric, most digastric
Pertaining to two small muscles located under the jaw: The term digastric muscles refer to these specific muscles which assist in lowering each of the upper and lower bony structures in vertebrates that form the framework of the mouth and containing the teeth.
A reference to the existence among animals of the same species of two distinct forms that differ in one or more characteristics; such as, coloration, size, or shape or the occurrence of two distinct forms of the same parts in one plant, as in the juvenile and adult leaves of ivy.
1. The existence of distinct genetically determined forms of the same species; such as, distinct male and female forms or distinct young and mature forms.
2. Characterized by a regular alternation of parasitic and nonparasitic phases, as in the life cycle of gordian (long slender worms found in water whose larva live as parasites on arthropods) or horsehair worms (nematode worms that live as parasites in the digestive tracts of domestic animals).