(Latin: appearing as if, as it were, as though; somewhat like, resembling, seemingly; simulating; in a certain sense or degree)

quasicratonic, quasi-cratonic (adjective); more quasicratonic, more quasi-cratonic; most quasicratonic, most quasi-cratonic
Describing a region of oceanic crust at the margin of a continent that is believed to have been material which stretched and floundered during its expansion.
quasicrystal (s) (noun), quasicrystals (pl)
A form of solid matter whose atoms are arranged like those of a crystal but assume patterns that do not exactly repeat themselves: In a quasicrystal, the local arrangements of atoms are fixed, and in a regular pattern, but are not periodic throughout the entire material because each cell has a different configuration of cells surrounding it.
quasi-diplomatic (adjective), more quasi-diplomatic, most quasi-diplomatic
quasi-dominance (s) (noun), quasi-dominances (pl)
The property of a heritable recessive trait to appear as if its inheritance is autosomal or X-linked dominant because of the mating of affected individuals with unaffected heterozygous carriers.
quasi-experiment (s) (noun), quasi-experiments (pl)
A study that has most of the characteristics of trying new methods to determine the accuracy of something, but which is unable to control potential factors, or perhaps is not guided by an idea of what all the factors are: Quasi experiments are similar to real investigations in that there are subjects, treatment, etc.; but it uses nonrandomized groups.

A lack of control sometimes leaves quasi-experiments with doubtful outcomes because they often lack internally consistent logic, and someone can often find the potential for circular logic, and other invalid reasoning.

Quasi-experiments with controversial outcomes almost always become embroiled in arguments over the lack of internal consistency.

A claim that scientists make for quasi-experiments is that they have external validity, by which they mean that the conclusions are widely applicable for the reason that they are drawn from a phenomenon as it exists in the field.

quasijudicial, quasi-judicial (adjective); more quasijudicial, quasi-judicial; most quasijudicial, quasi-judicial
Used to describe decision-making powers that are similar to those of a court judge, or to describe any arbitrator or inquiry with such powers: A quasi-judicial hearing on setting new telephone rates was held last month by the city council.
quasi-stationary front
In meteorology, a frontal system that is stationary or nearly stationary; generally, a front that moves at a speed of less than five knots (0.26 meter per second); also, stationary front.