ruler

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ruler

1. a person who rules or commands
2. a strip of wood, metal, or other material, having straight edges graduated usually in millimetres or inches, used for measuring and drawing straight lines

Ruler

 

a tool used for geometric constructions, linear measurements, and calculations. A scale (or scales) is usually marked on a ruler, the value of which depend on the purpose of the ruler. For convenience, some rulers have reference data (magnitudes of physical values, multiplication tables) or special attachments. For instance, rulers used in cartography have a magnifying glass that can slide along the ruler. Rulers used for geometric construction and measurements include straightedges, try squares, and shaped rulers (for instance, officer’s and navigator’s protractors, stencils), as well as French curves. In industry, rulers are used to measure linear dimensions in specific units (for instance, points in printing). Rulers are also used in technology for various purposes. For instance, a shrink ruler serves to compare specified dimensions and actual dimensions (in foundries, textile production). A straightedge is used to check the linearity of generating lines or the smoothness of surfaces in manufactured articles. A tape measure is used for measuring large lengths or diameters. A ruled scale is used to change from one scale to another. A slide rule is used for mathematical computations.

G. IU. FILANOVSKII

ruler

[′rül·ər]
(engineering)
A graduated strip of wood, metal, or other material, used to measure lines or as a guide in drawing lines.
References in periodicals archive ?
People still look up to traditional rulers as heads of their communities.
He said the rulers have to be held accountable for every penny of the nation .
Siraj said that there was a wide gap between the rulers and the ruled.
The UAE Rulers wished King Salman good health and well-being and expressed wishes of prosperity and progress to the Kingdom of Saudi Arabia and its people.
The Quezon City-based EcoWaste Coalition released a warning on Sunday that cautioned parents against buying cheap toy rulers, which were found to contain high levels of the poisonous substance, lead.
Abu Dhabi - Their Highnesses the Supreme Council members and Rulers of the Emirates have offered greetings on the occasion of the holy month of Ramadan to the President, His Highness Shaikh Khalifa bin Zayed Al Nahyan and prayed to Allah the Almighty to grant him good health and longevity to continue leading the country's march for sustainable development and prosperity.
This article seeks to answer the first question by closely examining some rulers to see exactly what it is that students are struggling to use.
2: Using Rulers Use a straight-edge ruler to draw straight lines and a fashion ruler to draw any curved lines.
At the beginning of the meeting, the UAE President and Emirates rulers exchanged greetings on the National Day.
Monter has organised the thirty female rulers of his sample, not only into chronological order, but also according to their sovereign status and actual practice of legitimacy, underlining their peculiarities and similarities.
He then proceeded to proclaim 'the declining position of the Rulers in the Malaysian polity'.