Anagrams of: IRTHLESS_

• a musical stringed instrument with strings stretched over a flat sounding board; it is laid flat and played with a plectrum and with fingers

• 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)

• position six in a countable series of things

• one part in six equal parts

• the musical interval between one note and another six notes away from it

• coming next after the fifth and just before the seventh in position

• position six in a countable series of things

• one part in six equal parts

• the musical interval between one note and another six notes away from it

• coming next after the fifth and just before the seventh in position

• type genus of the family Helicidae

• a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle

• a structure consisting of something wound in a continuous series of loops

• someone who makes a loud high sound

• United States painter (1834-1903)

• large North American mountain marmot

• large-headed swift-flying diving duck of Arctic regions

• Australian and southeastern Asian birds with a melodious whistling call

• someone who makes a loud high sound

• United States painter (1834-1903)

• large North American mountain marmot

• large-headed swift-flying diving duck of Arctic regions

• Australian and southeastern Asian birds with a melodious whistling call