Word Meanings - PENUMBRA - Book Publishers vocabulary database

The shadow cast, in an eclipse, where the light is partly, but not wholly, cut off by the intervening body; the space of partial illumination between the umbra, or perfect shadow, on all sides, and the full light. Sir I. Newton. Note: The faint

Additional info about word: PENUMBRA

The shadow cast, in an eclipse, where the light is partly, but not wholly, cut off by the intervening body; the space of partial illumination between the umbra, or perfect shadow, on all sides, and the full light. Sir I. Newton. Note: The faint shade surrounding the dark central portion of a solar spot is also called the penumbra, and sometimes umbra. (more info) 1. An incomplete or partial shadow.

Related words: (words related to PENUMBRA)

• SIDESADDLE
  A saddle for women, in which the rider sits with both feet on one side of the animal mounted. Sidesaddle flower , a plant with hollow leaves and curiously shaped flowers; -- called also huntsman's cup. See Sarracenia.
• WHEREIN
  1. In which; in which place, thing, time, respect, or the like; -- used relatively. Her clothes wherein she was clad. Chaucer. There are times wherein a man ought to be cautious as well as innocent. Swift. 2. In what; -- used interrogatively. Yet
• SHADOWY
  1. Full of shade or shadows; causing shade or shadow. "Shadowy verdure." Fenton. This shadowy desert, unfrequented woods. Shak. 2. Hence, dark; obscure; gloomy; dim. "The shadowy past." Longfellow. 3. Not brightly luminous; faintly light. The moon
• INTERVENE
  A coming between; intervention; meeting. Sir H. Wotton.
• WHEREVER
  At or in whatever place; wheresoever. He can not but love virtue wherever it is. Atterbury.
• PERFECT
  Hermaphrodite; having both stamens and pistils; -- said of flower. Perfect cadence , a complete and satisfactory close in harmony, as upon the tonic preceded by the dominant. -- Perfect chord , a concord or union of sounds which is perfectly
• PARTLY
  In part; in some measure of degree; not wholly. "I partly believe it." 1 Cor. xi. 18.
• 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
• INTERVENTRICULAR
  Between the ventricles; as, the interventricular partition of the heart.
• WHERETO
  1. To which; -- used relatively. "Whereto we have already attained." Phil. iii. 16. Whereto all bonds do tie me day by day. Shak. 2. To what; to what end; -- used interrogatively.
• LIGHT-ARMED
  Armed with light weapons or accouterments.
• WHEREAS
  1. Considering that; it being the case that; since; -- used to introduce a preamble which is the basis of declarations, affirmations, commands, requests, or like, that follow. 2. When in fact; while on the contrary; the case being in truth that;
• NEWTONIAN
  A follower of Newton.
• SPACE
  One of the intervals, or open places, between the lines of the staff. Absolute space, Euclidian space, etc. See under Absolute, Euclidian, etc. -- Space line , a thin piece of metal used by printers to open the lines of type to a regular distance
• 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.
• 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.
• PARTIALISM
  Partiality; specifically , the doctrine of the Partialists.
• FAINTLY
  In a faint, weak, or timidmanner.
• WHERE'ER
  Wherever; -- a contracted and poetical form. Cowper.
• LIGHT-FOOT; LIGHT-FOOTED
  Having a light, springy step; nimble in running or dancing; active; as, light-foot Iris. Tennyson.
• FORESHADOW
  To shadow or typi Dryden.
• SLIGHTNESS
  The quality or state of being slight; slenderness; feebleness; superficiality; also, formerly, negligence; indifference; disregard.
• 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
• DELIGHTING
  Giving delight; gladdening. -- De*light"ing*ly, adv. Jer. Taylor.
• FAINT
  feint, false, faint, F. feint, p.p. of feindre to feign, suppose, 1. Lacking strength; weak; languid; inclined to swoon; as, faint with fatigue, hunger, or thirst. 2. Wanting in courage, spirit, or energy; timorous; cowardly; dejected; depressed;
• WHER; WHERE
  Whether. Piers Plowman. Men must enquire , Wher she be wise or sober or dronkelewe. Chaucer.
• 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
• ADUMBRATIVE
  Faintly representing; typical. Carlyle.
• DELIGHTLESS
  Void of delight. Thomson.
• EVERYWHERENESS
  Ubiquity; omnipresence. Grew.
• SLIGHTEN
  To slight. B. Jonson.
• EVERYWHERE
  In every place; in all places; hence, in every part; throughly; altogether.
• LAMPLIGHTER
  The calico bass. (more info) 1. One who, or that which, lights a lamp; esp., a person who lights street lamps.