Search the Dictionary

Going beyond others, or beyond due limit; extreme; fanatical; uncompromising; as, an ultra reformer; ultra measures.

Beyond power; transcending authority; -- a phrase used frequently in relation to acts or enactments by corporations in excess of their chartered or statutory rights.

A prefix from the Latin ultra beyond (see Ulterior), having in composition the signification beyond, on the other side, chiefly when joined with words expressing relations of place; as, ultramarine, ultramontane, ultramundane, ultratropical, etc. In other relations it has the sense of excessively, exceedingly, beyond w…

Having the properties exhibited by gases under very low pressures (one millionth of an atmosphere or less). Matter under this condition, which has been termed the fourth state of matter, is sometimes called radiant matter.

Outrage. [Obs.]

The principles of those who advocate extreme measures, as radical reform, and the like. Dr. H. More.

One who pushes a principle or measure to extremes; an extremist; a radical; an ultra.

colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product in the manufacture of ultramarine, into which it is changed by subsequent treatment. -- Ultramarine ash or ashes (Paint.), a pigment which is the residuum of lapis lazuli a…

One who maintains extreme views favoring the pope's supremacy. See Ultramontanism.

The principles of those within the Roman Catholic Church who maintain extreme views favoring the pope's supremacy; -- so used by those living north of the Alps in reference to the Italians; -- rarely used in an opposite sense, as referring to the views of those living north of the Alps and opposed to the papal claims.…

One who upholds ultramontanism.

Being beyond the world, or beyond the limits of our system. Boyle.

Situated beyond or below the red rays; as, the ultrated rays of the spectrum, which are less refrangible than the red.

Situated beyond, or outside of, the tropics; extratropical; also, having an excessively tropical temperature; warmer than the tropics.

Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.

being in that part of the heavens that is more than eight degrees from the ecliptic; as, ultrazodiacal planets, that is, those planets which in part of their orbits go beyond the zodiac.

Sharp-edged and pointed; shaped like a pruning knife, as the beak of certain birds.

The uttermost point to which one can go or attain; hence, the summit of achievement; the highest point or degree; the acme.

Having a form resembling that of a colter, or straight on one side and curved on the other.

An apparatus for the production of sound by the action of the actinic, or ultraviolet, rays.