n. [ Gr. &unr_; dart, fr. &unr_; dart, fr. &unr_; to throw: cf. F. bélemnite. ] (Paleon.) A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family. The belemnites are found in rocks of the Jurassic and Cretaceous ages. --
n. an order of extinct dibranchiate cephalopods related to the surviving spirulas.
n. [ F. élément, L. elementum. ]
☞ The elements are naturally classified in several families or groups, as the group of the alkaline elements, the halogen group, and the like. They are roughly divided into two great classes, the metals, as sodium, calcium, etc., which form basic compounds, and the nonmetals or metalloids, as oxygen, sulphur, chlorine, which form acid compounds; but the distinction is only relative, and some, as arsenic, tin, aluminium, etc., form both acid and basic compounds. The essential fact regarding every element is its relative atomic number, which is equal to the number of protons in the nucleus, and also equal to the number of electrons in orbitals around the nucleus when the atom is neutral. When the elements are tabulated in the order of their ascending atomic numbers, the arrangement constitutes the series of the Periodic law of
Many of the elements with which we are familiar, as hydrogen, carbon, iron, gold, etc., have been recognized, by means of spectrum analysis, in the sun and the fixed stars. The chemical elements are now known not be simple bodies, but only combinations of subatomic particles such as protons, neutrons, and electrons; ahd protons and neutrons are now believed to be themselves combinations of quarks, particles which are not observed singly, but only in combinations.
In formulas, the elements are designated by abbreviations of their names in Latin or New Latin, given in the table below. The atomic weights given in the table below are the
chemical atomic weights, in some cases being the weighted average of the atomic weights of individual isotopes, each having a different atomic weight. The atomic weight of the individual isotopes are called the physical atomic weights. In those few cases where there is only one stable isotope of an element, the chemical and physical atomic weights are the same. The mass-spectrometric atomic weights are those used for careful mass-spectrometric measurements. For more details about individual elements, see the element names in the vocabulary
Several other elements have been announced, as holmium, vesbium, austrium, etc., but their properties, and in some cases their existence, have not yet been definitely established. [ 1913 Webster ]
The simplicity which is so large an element in a noble nature was laughed to scorn. Jowett (Thucyd.). [ 1913 Webster ]
Of elements
The grosser feeds the purer: Earth the Sea;
Earth and the Sea feed Air; the Air those Fires
Ethereal. Milton. [ 1913 Webster ]
Does not our life consist of the four elements? Shak. [ 1913 Webster ]
And the complexion of the element [
In favor's like the work we have in hand,
Most bloody, fiery, and most terrible. Shak. [ 1913 Webster ]
About twelve ounces [ of food ], with mere element for drink. Cheyne. [ 1913 Webster ]
They show that they are out of their element. T. Baker.
The elements shall melt with fervent heat. 2 Peter iii. 10. [ 1913 Webster ]
Magnetic element,
v. t.
His very soul was elemented of nothing but sadness. Walton. [ 1913 Webster ]
a.
a. The theory that the heathen divinities originated in the personification of elemental powers. [ 1913 Webster ]
n. The condition of being composed of elements, or a thing so composed. [ 1913 Webster ]
adv. According to elements; literally;
a. Elementary. [ Obs. ] Skelton. [ 1913 Webster ]
n. The state of being elementary; original simplicity; uncompounded state. [ 1913 Webster ]
n. Elementariness. [ Obs. ] Sir T. Browne. [ 1913 Webster ]
a. [ L. elementarius: cf. F. élémentaire. ]
n. Instruction in the elements or first principles. [ R. ] [ 1913 Webster ]
a. [ Element + -oid. ] Resembling an element. [ 1913 Webster ]
n. [ Cf. F. élemi, It. elemi, Sp. elemi; of American or Oriental. origin. ] A fragrant gum resin obtained chiefly from tropical trees of the genera
n. (Chem.) A transparent, colorless oil obtained from elemi resin by distillation with water; also, a crystallizable extract from the resin. [ 1913 Webster ]
prop. n. The son of Odysseus and Penelope, as told in Homer's Oddysey. [ PJC ]
n. the use of the telephone as an interactive medium for promotion; calling potential customers by telephone for the purpose of selling something; -- applied especially to calls made to persons who have not previously contacted the seller.
a. [ Gr.
n. [ Gr.
n. [ Gr. &unr_; far + -meter. ]
n. [ Gr.
n. The science or process of making remote measurements and sending the data by radio; the use of a telemeter. [ PJC ]
n. [ Gr.
n. [ Cf. F. transélémentation. ] (Eccl.) Transubstantiation. [ Obs. ] [ 1913 Webster ]