According to our teachers, all conditioning results in an obscuration of Truth.

This produces a very effective obscuration per weight of material used.

However, the obscuration only affected the field of view above the road horizon which is relatively less important.

A short obscuration of the Sun nearly froze us.

It is an obscuration that has brought about a condition of amnesia.

Moreover, obscuration by dust, oil or other contaminants can be a problem.

The dominant cause of this obscuration is industrial smoke, or pollution.

Rare obscuration of a major blood vessel, usually on the upper pole.

Let alone the strong possibility of obscuration by intragalactic dust and gas.

What effect does obscuration by dust have on the visibility of galaxy formation?

He described the current state of Europe as deep inertia, or "introduction to obscuration", to use his own words.

These are frequently attended by obscuration of vision or temporary blindness.

So it does increase the level of obscuration.

A blind spot, scotoma, is an obscuration of the visual field.

Visibility is estimated by optical instruments that measure the local degree of obscuration.

Nevertheless, with an obscuration of around 70%, the rising crescent Sun should provide a spectacular sight.

Obscuration by smoke may either help or hinder, depending on the tactical situation.

However, this problem can be overcome by taking images in the near infrared where dust obscuration is much reduced.

Adjusted for the three-dimensional game, Obscuration rules, four percent.

Total obscuration on the disc of a segment of a major vessel.

Measurements taken at local 2pm showed a slightly higher obscuration rate over the first 20 days of the mission, at 0.33% per day.

From the definition, it is also clear that large optical depths correspond to higher rate of obscuration.

Obscuration of one or more segments of major blood vessels leaving the disc.

A similar design relies on obscuration of light between the source and sensor to activate the alarm.

The word in brackets is actually unclear; there is an obscuration on my copy.