law of multiple proportions
         n 1: (chemistry) law stating that when two elements can combine
               to form more than one compound the amounts of one of them
               that combines with a fixed amount of the other will exhibit
               a simple multiple relation [syn: {law of multiple
               proportions}, {Dalton's law}]

English Dictionary: leaf mold	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
leaf mold n soil composed mainly of decaying leaves [syn: leaf mold, leaf mould, leaf soil]
From WordNet (r) 3.0 (2006) [wn]:
leaf mould n soil composed mainly of decaying leaves [syn: leaf mold, leaf mould, leaf soil]
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Lava \La"va\, n. [It. lava lava, orig. in Naples, a torrent of       rain overflowing the streets, fr. It. & L. lavare to wash.       See {Lave}.]       The melted rock ejected by a volcano from its top or fissured       sides. It flows out in streams sometimes miles in length. It       also issues from fissures in the earth's surface, and forms       beds covering many square miles, as in the Northwestern       United States.          Note: Lavas are classed, according to their structure, as                scoriaceous or cellular, glassy, stony, etc., and                according to the material of which they consist, as                doleritic, trachytic, etc.          {Lava millstone}, a hard and coarse basaltic millstone from             the neighborhood of the Rhine.          {Lava ware}, a kind of cheap pottery made of iron slag cast             into tiles, urns, table tops, etc., resembling lava in             appearance.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Multiple \Mul"ti*ple\, a. [Cf. F. multiple, and E. quadruple,       and multiply.]       Containing more than once, or more than one; consisting of       more than one; manifold; repeated many times; having several,       or many, parts.          {Law of multiple proportion} (Chem.), the generalization that             when the same elements unite in more than one proportion,             forming two or more different compounds, the higher             proportions of the elements in such compounds are simple             multiplies of the lowest proportion, or the proportions             are connected by some simple common factor; thus, iron and             oxygen unite in the proportions {FeO}, {Fe2O3}, {Fe3O4},             in which compounds, considering the oxygen, 3 and 4 are             simple multiplies of 1. Called also the {Law of Dalton},             from its discoverer.          {Multiple algebra}, a branch of advanced mathematics that             treats of operations upon units compounded of two or more             unlike units.          {Multiple conjugation} (Biol.), a coalescence of many cells             (as where an indefinite number of am[d2]boid cells flow             together into a single mass) from which conjugation proper             and even fertilization may have been evolved.          {Multiple fruits}. (Bot.) See {Collective fruit}, under             {Collective}.          {Multiple star} (Astron.), several stars in close proximity,             which appear to form a single system.