Word Meanings - VALENCE - Book Publishers vocabulary database

The degree of combining power of an atom as shown by the number of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom

Additional info about word: VALENCE

The degree of combining power of an atom as shown by the number of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom of hydrogen is a monad, and has a valence of one; the atoms of oxygen, nitrogen, and carbon are respectively dyads, triads, and tetrads, and have a valence respectively of two, three, and four. Note: The valence of certain elements varies in different compounds. Valence in degree may extend as high as seven or eight, as in the cases of iodine and osmium respectively. The doctrine of valence has been of fundamental importance in distinguishing the equivalence from the atomic weight, and is an essential factor in explaining the chemical structures of compounds.

Related words: (words related to VALENCE)

• 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
• HYDROGENIUM
  Hydrogen; -- called also in view of its supposed metallic nature. Graham.
• NUMBERFUL
  Numerous.
• CHLORINE
  One of the elementary substances, commonly isolated as a greenish yellow gas, two and one half times as heavy as air, of an intensely disagreeable suffocating odor, and exceedingly poisonous. It is abundant in nature, the most important compound
• OTHERGUISE; OTHERGUESS
  Of another kind or sort; in another way. "Otherguess arguments." Berkeley.
• 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.
• 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
• WHICHEVER; WHICHSOEVER
  Whether one or another; whether one or the other; which; that one which; as, whichever road you take, it will lead you to town.
• SUBSTITUTIONAL
  Of or pertaining to substitution; standing in the place of another; substituted. -- Sub`sti*tu"tion*al*ly, adv.
• HYDROGEN
  A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air , and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of
• COMBINATION
  The act or process of uniting by chemical affinity, by which substances unite with each other in definite proportions by weight to form distinct compounds. 4. pl. (more info) 1. The act or process of combining or uniting persons and things. Making
• COMBINE
  1. To unite or join; to link closely together; to bring into harmonious union; to cause or unite so as to form a homogeneous, as by chemical union. So fitly them in pairs thou hast combined. Milton. Friendship is the which really combines mankind.
• HYDROGENATE
  To hydrogenize.
• COMPARER
  One who compares.
• SUBSTITUTED
  Containing substitutions or replacements; having been subjected to the process of substitution, or having some of its parts replaced; as, alcohol is a substituted water; methyl amine is a substituted ammonia. Substituted executor , an executor
• COMPARISON
  The modification, by inflection or otherwise, which the adjective and adverb undergo to denote degrees of quality or quantity; as, little, less, least, are examples of comparison. (more info) 1. The act of comparing; an examination of two or more
• SUBSTITUTIONARY
  Of or pertaining to substitution; substitutional.
• COMPARTNER
  See COPARTNER
• NOTOTHERIUM
  An extinct genus of gigantic herbivorous marsupials, found in the Pliocene formation of Australia.
• ISOGEOTHERMAL; ISOGEOTHERMIC
  Pertaining to, having the nature of, or marking, isogeotherms; as, an isogeothermal line or surface; as isogeothermal chart. -- n.
• SMOTHER
  Etym: 1. To destroy the life of by suffocation; to deprive of the air necessary for life; to cover up closely so as to prevent breathing; to suffocate; as, to smother a child. 2. To affect as by suffocation; to stife; to deprive of air by a thick
• ISOTHEROMBROSE
  A line connecting or marking points on the earth's surface, which have the same mean summer rainfall.
• CANDLE POWER
  Illuminating power, as of a lamp, or gas flame, reckoned in terms of the light of a standard candle.
• ANOTHER-GUESS
  Of another sort. It used to go in another-guess manner. Arbuthnot.
• UNMOTHERED
  Deprived of a mother; motherless.
• ISOTHERMAL
  Relating to equality of temperature. Having reference to the geographical distribution of temperature, as exhibited by means of isotherms; as, an isothermal line; an isothermal chart. Isothermal line. An isotherm. A line drawn on a diagram
• EEL-MOTHER
  The eelpout.
• ISOTHERMOBATHIC
  Of or pertaining to an isothermobath; possessing or indicating equal temperatures in a vertical section, as of the ocean.
• MOTHER-OF-PEARL
  The hard pearly internal layer of several kinds of shells, esp. of pearl oysters, river mussels, and the abalone shells; nacre. See Pearl.
• MOTHER'S DAY
  A day appointed for the honor and uplift of motherhood by the loving remembrance of each person of his mother through the performance of some act of kindness, visit, tribute, or letter. The founder of the day is Anna Jarvis, of Philadelphia, who