Anagrams of: HUMANNATURE_

• brittle flat bread eaten at Passover

• an abbreviation for `hazardous material' used on warning signs

• A sign (ء‎ - a stand-alone hamza) used in the written Arabic language representing a glottal stop. Hamza may appear as a stand-alone letter or most commonly diacritically over or under other letters, e.g. أ‎ (over an alif - ا‎), إ‎ (under an alif), ؤ‎ (over a wāw - و‎) or ئ‎ (over a dotless yāʾ - ى‎). The exact seat of hamza is governed by an orthographic rule - "seat of hamza rule".

• a discrete amount of something that is analogous to the quantities in quantum theory

• (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)

• a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people

• a disease of humans that is not communicable; caused by infection with Bacillus anthracis followed by septicemia

• 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)

• a name given to a product or service

• someone who makes and sells hats

• the official of a synagogue who conducts the liturgical part of the service and sings or chants the prayers intended to be performed as solos

• unfulfilled or frustrated in realizing an ambition