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Lacking the apex; -- said of certain spiral shells in which the apex naturally drops off. Truncated cone or pyramid (Geom.), a cone or pyramid whose vertex is cut off by a plane, the plane being usually parallel to the base.

A small knoblike prominence or excrescence, whether natural or morbid; as, a tubercle on a plant; a tubercle on a bone; the tubercles appearing on the body in leprosy.

A natural covering; an integument; as, the tunic of a seed.

A slight natural covering; an integument. The tunicles that make the ball or apple of the eye. Holland.

Distended beyond the natural state by some internal agent or expansive force; swelled; swollen; bloated; inflated; tumid; -- especially applied to an enlarged part of the body; as, a turgid limb; turgid fruit. A bladder . . . held near the fire grew turgid. Boyle.

parts of the body, discharging purulent matter, found on a surface, especially one of the natural surfaces of the body, and originating generally in a constitutional disorder; a sore discharging pus. It is distinguished from an abscess, which has its beginning, at least, in the depth of the tissues.…

. In other relations it has the sense of excessively, exceedingly, beyond what is common, natural, right, or proper; as, ultraconservative; ultrademocratic, ultradespotic, ultraliberal, ultraradical, etc.

Of or pertaining to a natural order (Umbelliferæ) of plants, of which the parsley, carrot, parsnip, and fennel are well-known examples.

A brown or reddish pigment used in both oil and water colors, obtained from certain natural clays variously colored by the oxides of iron and manganese. It is commonly heated or burned before being used, and is then called burnt umber; when not heated, it is called raw umber. See Burnt umber, below.…

Having the umlaut; as, umlauted vowels. There is so natural connection between umlauted forms and plurality. Earle.

Free from affectation; plain; simple; natural; real; sincere; genuine; as, unaffected sorrow. -- Un`af*fect"ed*ly, adv. -- Un`af*fect"ed*ness, n.

Not fabricated; not artificial or counterfeit; natural. "Plain and uncoined constancy." Shak.

left under age. Spenser. Medicines take effect sometimes under, and sometimes above, the natural proportion of their virtue. Hooker. There are several hundred parishes in England under twenty pounds a year. Swift. It was too great an honor for any man under a duke. Addison.

ease in the value of land due to no labor or expenditure on the part of the owner, but to natural causes, such as the increase of population, the growth of a town in the vicinity, or the like. Some hold that this should belong to the nation.

One who, or that which, unifies; as, a natural law is a unifier of phenomena.

re regulated, and which is itself defined by comparison with some known magnitude, either natural or empirical, as, in the United States, the dollar for money, the pound avoirdupois for weight, the yard for length, the gallon of 8.3389 pounds avoirdupois of water at 39.8º Fahr. (about 231 cubic inches) for liquid measu…

nitudes taken as one, or for which 1 is made to stand in calculation; thus, in a table of natural sines, the radius of the circle is regarded as unity.

Not natural; contrary, or not conforming, to the order of nature; being without natural traits; as, unnatural crimes.

Not forced; easy; natural; as, a unstrained deduction or inference. Hakewill.

Not studied; not acquired by study; unlabored; natural.