Word Meanings - PHOTOMETER - Book Publishers vocabulary database

An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.

Related words: (words related to PHOTOMETER)

• LIGHT
  licht, OHG. lioht, Goth. liuhap, Icel. lj, L. lux light, lucere to 1. That agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous. Note: Light was regarded formerly
• COMPARATIVELY
  According to estimate made by comparison; relatively; not positively or absolutely. With but comparatively few exceptions. Prescott.
• COMPARE
  To inflect according to the degrees of comparison; to state positive, comparative, and superlative forms of; as, most adjectives of one syllable are compared by affixing "-er" and "-est" to the positive form; as, black, blacker, blackest; those
• DIFFERENTIALLY
  In the way of differentiation.
• ILLUMINATE
  in + luminare to enlighten, fr. lumen light. See Luminous, and cf. 1. To make light; to throw light on; to supply with light, literally or figuratively; to brighten. 2. To light up; to decorate with artificial lights, as a building or city, in
• INSTRUMENTAL
  Pertaining to, made by, or prepared for, an instrument, esp. a musical instrument; as, instrumental music, distinguished from vocal music. "He defended the use of instrumental music in public worship." Macaulay. Sweet voices mix'd with instrumental
• POWERFUL
  Large; capacious; -- said of veins of ore. Syn. -- Mighty; strong; potent; forcible; efficacious; energetic; intense. -- Pow"er*ful*ly, adv. -- Pow"er*ful*ness, n. (more info) 1. Full of power; capable of producing great effects of any
• POWERABLE
  1. Capable of being effected or accomplished by the application of power; possible. J. Young. 2. Capable of exerting power; powerful. Camden.
• LIGHTSOME
  1. Having light; lighted; not dark or gloomy; bright. White walls make rooms more lightsome than black. Bacon. 2. Gay; airy; cheering; exhilarating. That lightsome affection of joy. Hooker. -- Light"some*ly, adv. -- Light"some*ness, n. Happiness
• MEASURING
  Used in, or adapted for, ascertaining measurements, or dividing by measure. Measuring faucet, a faucet which permits only a given quantity of liquid to pass each time it is opened, or one by means of which the liquid which passes can be measured.
• LIGHTNESS
  The state, condition, or quality, of being light or not heavy; buoyancy; levity; fickleness; delicacy; grace. Syn. -- Levity; volatility; instability; inconstancy; unsteadiness; giddiness; flightiness; airiness; gayety; liveliness; agility;
• DIFFERENTLY
  In a different manner; variously.
• LIGHT-ARMED
  Armed with light weapons or accouterments.
• LIGHTERAGE
  1. The price paid for conveyance of goods on a lighter. 2. The act of unloading into a lighter, or of conveying by a lighter.
• COMPARTMENT
  One of the sections into which the hold of a ship is divided by water-tight bulkheads. (more info) 1. One of the parts into which an inclosed portion of space is divided, as by partitions, or lines; as, the compartments of a cabinet, a house, or
• LIGHT-O'-LOVE
  1. An old tune of a dance, the name of which made it a proverbial expression of levity, especially in love matters. Nares. "Best sing it to the tune of light-o'-love." Shak. 2. Hence: A light or wanton woman. Beau. & Fl.
• DIFFERENT
  1. Distinct; separate; not the same; other. "Five different churches." Addison. 2. Of various or contrary nature, form, or quality; partially or totally unlike; dissimilar; as, different kinds of food or drink; different states of health; different
• MEASURER
  One who measures; one whose occupation or duty is to measure commondities in market.
• LIGHT-FOOT; LIGHT-FOOTED
  Having a light, springy step; nimble in running or dancing; active; as, light-foot Iris. Tennyson.
• INTENSITY
  The amount or degree of energy with which a force operates or a cause acts; effectiveness, as estimated by results produced. (more info) 1. The state or quality of being intense; intenseness; extreme degree; as, intensity of heat, cold, mental
• SLIGHTNESS
  The quality or state of being slight; slenderness; feebleness; superficiality; also, formerly, negligence; indifference; disregard.
• DELIGHTING
  Giving delight; gladdening. -- De*light"ing*ly, adv. Jer. Taylor.
• DRUMMOND LIGHT
  A very intense light, produced by turning two streams of gas, one oxygen and the other hydrogen, or coal gas, in a state of ignition, upon a ball of lime; or a stream of oxygen gas through a flame of alcohol upon a ball or disk of lime; -- called
• CANDLE POWER
  Illuminating power, as of a lamp, or gas flame, reckoned in terms of the light of a standard candle.
• DELIGHTLESS
  Void of delight. Thomson.
• IMMEASURABLY
  In an immeasurable manner or degree. "Immeasurably distant." Wordsworth.
• SLIGHTEN
  To slight. B. Jonson.
• IMMEASURED
  Immeasurable. Spenser.
• LAMPLIGHTER
  The calico bass. (more info) 1. One who, or that which, lights a lamp; esp., a person who lights street lamps.
• INDIFFERENTLY
  In an indifferent manner; without distinction or preference; impartially; without concern, wish, affection, or aversion; tolerably; passably. That they may truly and indifferently minister justice, to the punishment of wickedness and vice, and to
• FLIGHTER
  A horizontal vane revolving over the surface of wort in a cooler, to produce a circular current in the liquor. Knight.