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(Geol.) Pertaining to or designating a period or era recognized by the United States Geological Survey and some other authorities, between the Archæan and the Paleozoic, from both of which it is generally separated in the record by unconformities. Algonkian rocks are both sedimentary and igneous. Although fossils are…

Pertaining to or designating the most extensive of the linguistic families of North American Indians, their territory formerly including practically all of Canada east of the 115th meridian and south of Hudson's Bay and the part of the United States east of the Mississippi and north of Tennessee and Virginia, with the…

Of or pertaining to the algæ, or seaweeds; abounding with, or like, seaweed.

One excluded from certain privileges; one alienated or estranged; as, aliens from God's mercies. Aliens from the common wealth of Israel. Ephes. ii. 12.

Pertaining to expansions of the ethmoid bone or

Pertaining to aliment or food, or to the function of nutrition; nutritious; alimental; as, alimentary substances. Alimentary canal, the entire channel, extending from the mouth to the anus, by which aliments are conveyed through the body, and the useless parts ejected.

Pertaining to expansions of the nasal bone or cartilage.

A star in the tail of the Great Bear, the one next the bowl in the Dipper.

Of, pertaining to, or derived from, fat; fatty; -- applied to compounds having an openc-hain structure. The aliphatic compounds thus include not only the fatty acids and other derivatives of the paraffin hydrocarbons, but also unsaturated compounds, as the ethylene and acetylene series.

Pertaining to or forming the wing of the sphenoid; relating to a bone in the base of the skull, which in the adult is often consolidated with the sphenoid; as, alisphenoid bone; alisphenoid canal.

A sterile plain, containing an excess of alkali, at the bottom of an undrained basin in an arid region; a playa.

Any one of various soils found in arid and semiarid regions, containing an unusual amount of soluble mineral salts which effloresce in the form of a powder or crust (usually white) in dry weather following rains or irrigation. The basis of these salts is mainly soda with a smaller amount of potash, and usually a little…

An instrument to ascertain the strength of alkalies, or the quantity of alkali in a mixture.

Of or pertaining to alkalimetry.

The art or process of ascertaining the strength of alkalies, or the quantity present in alkaline mixtures.

Of or pertaining to an alkali or to alkalies; having the properties of an alkali. Alkaline earths, certain substances, as lime, baryta, strontia, and magnesia, possessing some of the qualities of alkalies. -- Alkaline metals, potassium, sodium, cæsium, lithium, rubidium. -- Alkaline reaction, a reaction indicating al…

Pertaining to, resembling, or containing, alkali.

that is, better by the whole difference. -- All the same, nevertheless. "There they [certain phenomena] remain rooted all the same, whether we recognize them or not." J. C. Shairp. "But Rugby is a very nice place all the same." T. Arnold. -- See also under All, n.

A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition.

Pertaining to, or contained in, the allantois. Allantoic acid. (Chem.) See Allantoin.