ATOMIC THEORY

(In Chemistry.) When substances combine chemically, they are found to unite in certain weights; thus, water is constituted of one part by weight of hydrogen and eight of oxygen, and the gases only combine in those proportions to form it. It is a umed that water is a compound of an atom of hydrogen and an atom of oxygen, and that the relative weight of the atom of hydrogen to the atom of oxygen is as 1: 8; hence the atomic weight of water is 1+8, or=9. The same theoretical views are applicable to all other simple and compound bodies, and the numbers which represent their combining weights are hence called their atomic or equivalent numbers. (See Equivalents, and Affinity.) ATOMOGYNIA (Yunanca köken — orijinale bakınız.)], a female.) A word proposed to be substituted for angiosperm i a, the name of the second order of the sixth cla of LinnfKus, signifying that the ovary is not cleft into distinct parts. [s. 117]