grad-, -grade, -gred, -gree, -gress

(Latin: walk, step, take steps, move around; walking or stepping)

ingression
laterigrade
laterograde
mesiogression
A condition of having the teeth forward of the normal position in the arch.
Non progredi est regredi.
Not to progress is to regress.

Motto of the McCook Community College, McCook, Nebraska, USA.

ocean thermal gradient (OTG)
The temperature difference between warmer surface waters of the ocean and colder deep waters, with deeper water likely to be 20-50 degrees Fahrenheit colder.

In principle, this temperature gradient can be utilized with various types of ocean thermal energy conversion systems.

ogress
orthograde
1. In primate studies, the condition in which the body posture is upright or vertical; as, in bipedalism; especially with reference to humans.
2. Characterized by walking in a direction perpendicular to the long axis of the body; walking upright.
oxobiodegradable, oxo-biodegradable
Unlike "normal" plastics, that degrade and disintegrate very slowly, oxo-biodegradable plastics are manufactured to accelerate the destruction of the plastic product, preferably extending the destruction to the extent where the plastic is mineralized into its basic component elements.

Plastic bags which are oxo-biodegradable retain all of the advantages of normal plastic bags; however, they provide effective solutions to the compost and landfill industries with minimal disruption of consumer behavioral patterns.

phalangigrade
Walking on the phalanges; belonging to the division Phalangigrada, which consists of the camel and llama.
phi grade scale, phi scale
In geology, a logarithmic scale in which the diameter value of the Wentworth scale is replaced by the negative logarithm to the base two of the particle diameter (in millimeters), so that conventional statistical methods can be applied to sedimentary data.
photodegradable
Able to be decomposed into a simpler substance through prolonged exposure to incident electromagnetic energy, especially ultraviolet light.
photodegradation
The decomposition of a substance resulting from the action of light.
physograde, physogradous
Moving by means of a hollow vesicular float or buoy; of or pertaining to the Physograda, a group of oceanic hydrozoa furnished with such floating organs; a member of this group.
pinnigrade