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A peculiar method of transformation, in which a figure is replaced by its inverse figure. Propositions that are true for the original figure thus furnish new propositions that are true in the inverse figure. See Inverse figures, under Inverse.

Containing the same information, as isagelous sentences. The coded message and the original, though appearing entirely unlike, are completely isagelous. Bacon The complementary strands have isagelous sequences. J. D. Watson. -- Isagel I*sag"e*lous (i*sâg"ê*lûs), a. Etym: [Is- + Gr. a`gelos information.]…

A method of moving a fleet from one formation to another, the direction usually being changed eight points (90º), by means of paths of equal length for each ship. It is prohibited in the United States navy.

The Jurassic period or formation; -- called also the Jura.

of Pennsylvania; -- so called from its having been the central State of the Union at the formation of the Constitution.

To perceive or apprehend clearly and certainly; to understand; to have full information of; as, to know one's duty. O, that a man might know The end of this day's business ere it come! Shak. There is a certainty in the proposition, and we know it. Dryden. Know how sublime a thing it is To suffer and be strong. Longfell…

Scope of information; cognizance; notice; as, it has not come to my knowledge. Why have I found grace in thine eyes, that thou shouldst take knowledge of me Ruth ii. 10.

Labyrinthodon, and many other allied forms, from the Carboniferous, Permian, and Triassic formations. By recent writers they are divided into two or more orders. See Stegocephala.

A genus of huge, carnivorous, dinosaurian reptiles from the Cretaceous formation of the United States. They had very large hind legs and tail, and are supposed to have been bipedal. Some of the species were about eighteen feet high.

consisting of, containing, or characterized by, laterite; as, lateritic formations.

To gain knowledge or information of; to ascertain by inquiry, study, or investigation; to receive instruction concerning; to fix in the mind; to acquire understanding of, or skill; as, to learn the way; to learn a lesson; to learn dancing; to learn to skate; to learn the violin; to learn the truth about something. "Lea…

The formation of leucocytes.

Of the age of the Lias; pertaining to the Lias Formation. -- n.

or makes clear to the mind; mental or spiritual illumination; enlightenment; knowledge; information. He shall never know That I had any light of this from thee. Shak.

The formation of football players before the start or a restart of play; hence (Colloq.),

roblem which may be solved geometrically by the use of right lines alone. -- Linear transformation (Alg.), a change of variables where each variable is replaced by a function of the first degree in the new variable.

The formation of stony concretions or calculi in any part of the body, especially in the bladder and urinary passages. Dunglison.

Pertaining to the formation of uric-acid concretions (stone) in the bladder and other parts of the body; as, lithic diathesis. LIthic acid (Old Med. Chem.), uric acid. See Uric acid, under Uric.

Any species of ammonites of the genus Lituites. They are found in the Cretaceous formation.

A series of strata in the lower Silurian formations of Great Britain; -- so named from Llandeilo in Southern Wales. See Chart of Geology.