control vs heavy metal

control

noun
  • Influence or authority over something. 

  • A duplicate book, register, or account, kept to correct or check another account or register. 

  • An interface element that a computer user interacts with, such as a window or a text box (abbreviated Ctrl). 

  • A control group or control experiment. 

  • A checkpoint along an audax route. 

  • A means of monitoring for, and triggering intervention in, activities that are not going according to plan. 

  • The method and means of governing the performance of any apparatus, machine or system, such as a lever, handle or button. 

  • Restraint or ability to contain one's movements or emotions, or self-control. 

  • A security mechanism, policy, or procedure that can counter system attack, reduce risks, and resolve vulnerabilities; a safeguard or countermeasure. 

  • A spirit that takes possession of a psychic or medium and allows other spirits to communicate with the living. 

  • A construction in which the understood subject of a given predicate is determined by an expression in context. See control. 

  • Any of the physical factors determining the climate of a place, such as latitude, distribution of land and water, altitude, exposure, prevailing winds, permanent high- or low-barometric-pressure areas, ocean currents, mountain barriers, soil, and vegetation. 

verb
  • (construed with for) To design (an experiment) so that the effects of one or more variables are reduced or eliminated. 

  • to hold in check, to curb, to restrain 

  • To exercise influence over; to suggest or dictate the behavior of. 

heavy metal

noun
  • Great influence or power. 

  • A genre descended from rock music, characterized by massive sound, highly amplified distortion, and overall loudness, often with extended guitar solos, and lyrics that involve aggressive or fantastic imagery. 

  • Any metal that has a specific gravity greater than about 5, especially one, such as lead, that is poisonous and may be a hazard in the environment. (There are many different definitions of what counts as a heavy metal; see Heavy metals for a discussion.) 

  • guns or shot of large size. 

How often have the words control and heavy metal occurred in a corpus of books? (source: Google Ngram Viewer )