‖n. [ NL. See acetone; Urine. ] (Med.) Excess of ketone bodies (including acetone, acetoacetic acid and beta-hydroxybutyric acid) in the urine, as in starvation or diabetes
‖n. [ NL., fr. Gr. &unr_; up + E. electrotonus. ] (Physiol.) The condition of decreased irritability of a nerve in the region of the positive electrode or anode on the passage of a current of electricity through it. Foster. [ 1913 Webster ]
n.;
‖n. [ NL., fr. Gr. &unr_; down + &unr_; (see Electro-) + &unr_; tone. ] (Physics) The condition of increased irritability of a nerve in the region of the cathode or negative electrode, on the passage of a current of electricity through it. [ 1913 Webster ]
a. [ L. clarisonus; clarus + sonus. ] Having a clear sound. [ Obs. ] Ash. [ 1913 Webster ]
‖n. [ NL., fr. Gr.
def>A method of pronouncing Latin and Greek in which the vowels have their more familiar Continental values, as in German and Italian, the consonants being pronounced mostly as in English. The stricter form of this method of pronouncing Latin approaches the Roman, the modified form the English, pronunciation. The Continental method of Greek pronunciation is often called
n. [ Origin unknown. ]
Or pun ambiguous, or conundrum quaint. J. Philips. [ 1913 Webster ]
Do you think life is long enough to let me speculate on conundrums like that? W. Black. [ 1913 Webster ]
n. [ NL. conurus, fr. Gr.
‖n. [ L., a cone. ]
a. Cognizable; liable to be tried or judged. [ Obs. ] Bp. Barlow. [ 1913 Webster ]
a. (Law) See Cognizant. [ 1913 Webster ]
n. (Law) See Cognizor. [ 1913 Webster ]
n. the type genus of the
n. [ L. coronula, dim. of corona crown. ] (Bot.) A coronet or little crown of a seed; the downy tuft on seeds. See Pappus. Martyn. [ 1913 Webster ]
n. a nucleic acid, usually of very high molecular weight, consisting of a linear sequence of monomer units of deoxyribonucleotides, occurring in most organisms in pairs of strands, wound together in the form of a double helix; it is the main component of chromosomes and contains the genetic information which is the basis of heredity, transmitted from parent to progeny, and found in all living organisms except for certain viruses which have RNA as their basic genetic material; -- usually referred to by the acronym
☞ The monomer units making up the DNA each contain one of four heterocyclic bases: thymine, adenine, cytosine, or guanine. The genetic information is contained in the precise sequence of these monomer units, which ultimately specify the sequence of proteins to be made by the organism's biosynthetic processes, mediated through the synthesis of RNA having a base sequence corresponding to that of the DNA. The DNA sequence also specifies the sequence of the various RNA molecules the RNA base sequence being a copy of that on one of the DNA strands. Most of the RNA synthesized is involved in protein synthesis. In the double-helical form of DNA, the thymine on one strand is paired with the adenine on the opposite strand, and cytosine of one strand is paired with guanine on the opposite strand. There is in DNA also certain controlling information concerning the timing and amount of RNA to be made, encoded within the sequence of the DNA in ways that are still being elucidated.
When this structure is replicated in the course of cell multiplication, two identical double-helical molecules are formed, each containing one strand from the original molecule. Each resulting molecule is distributred to either the parent or progeny organism, and this is the basic mechanism for transmission of hereditary information. In RNA-based viruses, or those having single strands of DNA (as certain viruses), the genetic information transmission occurs through a double-stranded intermediate by a similar mechanism.
In some organisms slight modifications of the bases of DNA are found, such as methylcytosine or, in some viruses, uracil or hydroxymethyluracil; these unusual bases act analogously to the normal bases in their genetic coding function. A small percentage of methylcytosine is found in many organisms, and it serves in some cases as a special signal, as for restriction enzymes. [ PJC ]
n. an organic molecule consisting of a hereocyclic base attached to the 1-carbon of a deoxyribose ring, with a phosphate group esterified at the 5 position of the deoxyribose. Deoxyribonuceotides are the monomer units which make up deoxyribonucleic acid, the molecule carrying the hereditary information in most organisms. The most common forms of deoxyribonuceotide are
n. same as deoxyribonucleic acid. [ PJC ]
‖n. [ NL., fr. combining form electro- + Gr. &unr_; tension. ] (Physiol.) The modified condition of a nerve, when a constant current of electricity passes through any part of it. See Anelectrotonus, and Catelectrotonus. [ 1913 Webster ]
‖n. [ NL., fr. E. galvanic + Gr. &unr_; to tone. ] (Physiol.) Same as Electrotonus. [ 1913 Webster ]
‖n. [ NL., fr. Gr. &unr_; a half ass, a mule. ] (Zool.) A wild ass found in Tibet; the kiang. Darwin.
prop. n. A genus of oceanic bonitos; in some classifications it is placed in its own family
n. A genus of stout Old World herbs having cut-lobed leaves and flowers in whorls.
n. Wrong or improper pronunciation. [ 1913 Webster ]
‖n. [ From the Indian name. ] (Zool.) The American badger. [ 1913 Webster ]
n. [ F., fr. L. monumentum, fr. monere to remind, admonish. See Monition, and cf. Moniment. ]
Of ancient British art
A pleasing monument. Philips. [ 1913 Webster ]
Our bruised arms hung up for monuments. Shak. [ 1913 Webster ]
On your family's old monument
Hang mournful epitaphs, and do all rites
That appertain unto a burial. Shak. [ 1913 Webster ]
Acts and Monuments of these latter and perilous days. Foxe. [ 1913 Webster ]
a. [ L. monumentalis: cf. F. monumental. ]
A work outlasting monumental brass. Pope. [ 1913 Webster ]
adv.
n. [ Mon- + ureid. ] (Chem.) Any one of a series of complex nitrogenous substances regarded as derived from one molecule of urea;
a. Having, or tipped with, a small point or points. [ 1913 Webster ]
n. One who believes that past changes in the structure of the earth have proceeded from cataclysms or causes more violent than are now operating; -- called also
a.
n. One who does not belong, or refuses to belong, to a trades union. [ 1913 Webster ]
n. Neglect of using; failure to use. [ R. ] Sir T. Browne. [ 1913 Webster ]
An office may be forfeited by misuser or nonuser. Blackstone. [ 1913 Webster ]
‖n. [ L. ] A burden; an obligation. [ 1913 Webster ]
Onus probandi ety>[ L. ],
‖n. [ NL. See Peptone, and Urine. ] (Med.) The presence of peptone, or a peptonelike body, in the urine; now referred to as
n. [ NL. See Photo-, and Tone. ]
‖n. [ NL., fr. Gr.
‖n. [ NL., fr. Gr. &unr_; a kind of plant;
a. [ L. pronuba bridesmaid; pro before + nubere to marry. ] Presiding over marriage. [ R. ] [ 1913 Webster ]
n.;
☞ In the maturing of the ovum preparatory to impregnation, a part of the germinal vesicle (see
a. Of or pertaining to pronunciation; pronunciative. [ 1913 Webster ]
n. A proclamation or manifesto; a formal announcement or declaration. [ 1913 Webster ]
‖n. [ Sp. See Pronounce. ] See Pronunciamento. [ 1913 Webster ]
n. [ F. pronunciation, L. pronunciatio. See Pronounce. ] [ 1913 Webster ]
a. [ L. pronunciativus. ] [ 1913 Webster ]
n. [ L., a reciter. ] One who pronounces; a pronouncer. [ 1913 Webster ]
a. Of or pertaining to pronunciation; that pronounces. [ 1913 Webster ]