level tube bubble

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• Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… …   Wikipedia

• level — [lev′əl] n. [OFr livel < VL * libellus < L libella, dim. of libra, a balance, level, weight] 1. an instrument for determining, or adjusting a surface to, an even horizontal plane: it has a glass tube partly filled with liquid so as to leave …   English World dictionary

• Level — Lev el (l[e^]v [e^]l), n. [OE. level, livel, OF. livel, F. niveau, fr. L. libella level, water level, a plumb level, dim. of libra pound, measure for liquids, balance, water poise, level. Cf. {Librate}, {Libella}.] 1. A line or surface to which,… …   The Collaborative International Dictionary of English

• Level of the sea — Level Lev el (l[e^]v [e^]l), n. [OE. level, livel, OF. livel, F. niveau, fr. L. libella level, water level, a plumb level, dim. of libra pound, measure for liquids, balance, water poise, level. Cf. {Librate}, {Libella}.] 1. A line or surface to… …   The Collaborative International Dictionary of English

• Bubble — Bub ble, n. [Cf. D. bobbel, Dan. boble, Sw. bubbla. Cf. {Blob}, n.] 1. A thin film of liquid inflated with air or gas; as, a soap bubble; bubbles on the surface of a river. [1913 Webster] Beads of sweat have stood upon thy brow, Like bubbles in a …   The Collaborative International Dictionary of English

• level — levelly, adv. levelness, n. /lev euhl/, adj., n., v., leveled, leveling or (esp. Brit.) levelled, levelling, adv. adj. 1. having no part higher than another; having a flat or even surface. 2. being in a plane parallel to the plane of the horizon; …   Universalium

• level — /ˈlɛvəl / (say levuhl) adjective 1. having no part higher than another; having an even surface. 2. being in a plane parallel to the plane of the horizon; horizontal. 3. on an equality, as one thing with another, or two or more things with one… …  

• level — I. noun Etymology: Middle English, plumb line, from Anglo French livel, from Vulgar Latin *libellum, alteration of Latin libella, from diminutive of libra weight, balance Date: 14th century 1. a device for establishing a horizontal line or plane… …   New Collegiate Dictionary

• bubble tube — noun : the glass tube containing the liquid and bubble in a spirit level …   Useful english dictionary

• Spirit level — A spirit level or bubble level is an instrument designed to indicate whether a surface is level or plumb. Different types of spirit levels are used by carpenters, stone masons, bricklayers, other building trades workers, surveyors, millwrights… …   Wikipedia

• prism level — noun : a dumpy level with a mirror over the level tube and a pair of prisms so placed that the position of the level bubble can be determined by the levelman without moving his head from the eyepiece …   Useful english dictionary