Anagrams of: TETRAHEDRAL_

• one trillion periods per second

• a source of danger; a possibility of incurring loss or misfortune

• an unknown and unpredictable phenomenon that causes an event to result one way rather than another

• an obstacle on a golf course

• put forward, of a guess, in spite of possible refutation

• put at risk

• take a risk in the hope of a favorable outcome

• expel air

• give out (breath or an odor)

• atmospheric moisture or dust or smoke that causes reduced visibility

• confusion characterized by lack of clarity

• become hazy, dull, or cloudy

• harass by imposing humiliating or painful tasks, as in military institutions

• hospital for persons with infectious diseases (especially leprosy)

• A US marine.

• Australian tree grown especially for ornament and its fine-grained wood and bearing edible nuts

• the fine-grained wood of a hazelnut tree (genus Corylus) and the hazel tree (Australian genus Pomaderris)

• any of several shrubs or small trees of the genus Corylus bearing edible nuts enclosed in a leafy husk

• a shade of brown that is yellowish or reddish; it is a greenish shade of brown when used to describe the color of someone's eyes

• of a light brown or yellowish brown color

• German physicist who was the first to produce electromagnetic waves artificially (1857-1894)

• the unit of frequency; one hertz has a periodic interval of one second (named for Heinrich Rudolph Hertz)

• German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975)