(n.) The exterior form or appearance of anything; that part which presents itself to the view; especially, the front or upper part or surface; that which particularly offers itself to the view of a spectator.
(n.) That part of a body, having several sides, which may be seen from one point, or which is presented toward a certain direction; one of the bounding planes of a solid; as, a cube has six faces.
(n.) The principal dressed surface of a plate, disk, or pulley; the principal flat surface of a part or object.
(n.) That part of the acting surface of a cog in a cog wheel, which projects beyond the pitch line.
(n.) The width of a pulley, or the length of a cog from end to end; as, a pulley or cog wheel of ten inches face.
(n.) The upper surface, or the character upon the surface, of a type, plate, etc.
(n.) That part of the head, esp. of man, in which the eyes, cheeks, nose, and mouth are situated; visage; countenance.
(n.) Cast of features; expression of countenance; look; air; appearance.
(n.) Ten degrees in extent of a sign of the zodiac.
(n.) Maintenance of the countenance free from abashment or confusion; confidence; boldness; shamelessness; effrontery.
(n.) Presence; sight; front; as in the phrases, before the face of, in the immediate presence of; in the face of, before, in, or against the front of; as, to fly in the face of danger; to the face of, directly to; from the face of, from the presence of.
(n.) Mode of regard, whether favorable or unfavorable; favor or anger; mostly in Scriptural phrases.
(n.) The end or wall of the tunnel, drift, or excavation, at which work is progressing or was last done.
(n.) The exact amount expressed on a bill, note, bond, or other mercantile paper, without any addition for interest or reduction for discount.
(v. t.) To meet in front; to oppose with firmness; to resist, or to meet for the purpose of stopping or opposing; to confront; to encounter; as, to face an enemy in the field of battle.
(v. t.) To Confront impudently; to bully.
(v. t.) To stand opposite to; to stand with the face or front toward; to front upon; as, the apartments of the general faced the park.
(v. t.) To cover in front, for ornament, protection, etc.; to put a facing upon; as, a building faced with marble.
(v. t.) To line near the edge, esp. with a different material; as, to face the front of a coat, or the bottom of a dress.
(v. t.) To cover with better, or better appearing, material than the mass consists of, for purpose of deception, as the surface of a box of tea, a barrel of sugar, etc.
(v. t.) To make the surface of (anything) flat or smooth; to dress the face of (a stone, a casting, etc.); esp., in turning, to shape or smooth the flat surface of, as distinguished from the cylindrical surface.
(v. t.) To cause to turn or present a face or front, as in a particular direction.
(v. i.) To carry a false appearance; to play the hypocrite.
(v. i.) To turn the face; as, to face to the right or left.
(v. i.) To present a face or front.
Example Sentences:
(1) Some commentators have described his ship, now facing more delays after a decade in development, as little more than a Heath Robinson machine.
(2) I hope this movement will continue and spread for it has within itself the power to stand up to fascism, be victorious in the face of extremism and say no to oppressive political powers everywhere.” Appearing via videolink from Tehran, and joined by London mayor Sadiq Khan and Palme d’Or winner Mike Leigh, Farhadi said: “We are all citizens of the world and I will endeavour to protect and spread this unity.” The London screening of The Salesman on Sunday evening wasintended to be a show of unity and strength against Trump’s travel ban, which attempted to block arrivals in the US from seven predominantly Muslim countries: Iran, Iraq, Libya, Sudan, Somalia, Syria and Yemen.
(3) The playing fields on which all those players began their journeys have been underfunded for years and are now facing a renewed crisis because of cuts to local authority budgets.
(4) Matthias Müller, VW’s chief executive, said: “In light of the wide range of challenges we are currently facing, we are satisfied overall with the start we have made to what will undoubtedly be a demanding fiscal year 2016.
(5) Former lawmaker and historian Faraj Najm said the ruling resets Libya “back to square one” and that the choice now faced by the Tobruk-based parliament is “between bad and worse”.
(6) The dilemmas faced by the genetic counsellor are discussed in this variable autosomal dominant condition.
(7) The law would let people find out if partners had a history of domestic violence but is likely to face objections from civil liberties groups.
(8) It was so difficult to keep a straight face when I was filming a sauna scene with Roy Barraclough, who played the mayor of Blackpool.
(9) "We presently are involved in a number of intellectual property lawsuits, and as we face increasing competition and gain an increasingly high profile, we expect the number of patent and other intellectual property claims against us to grow," the company said.
(10) In subsequent experiments, both components were found to be significant and additive predictors of face recognition with no residual effect of typicality.
(11) Think of Nelson Mandela – there is a determination, an unwillingness to bend in the face of challenges, that earns you respect and makes people look to you for guidance.
(12) The size of Florida makes the kind of face-to-face politics of the earlier contests impossible, requiring instead huge ad spending.
(13) The lymphocyte-specific phosphoprotein LSP1 associates with the cytoplasmic face of the plasma membrane and with the cytoskeleton.
(14) Newspapers and websites across the country have been reporting the threat facing nursery schools for weeks, from Lancashire to Birmingham and beyond.
(15) When faced with a big dilemma, the time-honoured tradition of politicians is to order an inquiry, and that is what Browne expects.
(16) Taking into account the calculated volume and considering the triangular image as one face of the particle, it is suggested that eIF-3 has the shape of a flat triangular prism with a height of about 7 nm and the above-mentioned side-lengths.
(17) What is Obama doing about the prejudice and violence faced by brown people here at home?
(18) "Monasteries and convents face greater risks than other buildings in terms of fire safety," the article said, adding that many are built with flammable materials and located far away from professional fire brigades.
(19) Cameron, who faces intense political pressure from the UK Independence party in the runup to the 2014 European parliamentary elections, believes voters will need to be consulted if the EU agrees a major treaty revision in the next few years.
(20) Uruguay's coach, Oscar Tabárez, had insisted yesterday that his player should face only a one-match ban.
Tetrahedral
Definition:
(a.) Having, or composed of, four sides.
(a.) Having the form of the regular tetrahedron.
(a.) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs.
Example Sentences:
(1) The results suggest that the transition state contains a tetrahedral carbon with the R configuration as a result of the direct attack of an oxygen nucleophile at C-6 of AMP.
(2) The distribution of angles between two hydrogen bonds at a single water molecule, as defined by the three nonhydrogen atoms involved, was centered near the tetrahedral angle.
(3) Theoretical conformational analysis of the tetrahedral complexes of trypsin with the N-acetyl-L-lysine methyl amide, which are formed at the acylation and the deacylation stages of the catalytical act has been carried out.
(4) Furthermore, zinc binding to one of the mutant finger proteins suggests either that only a precise finger structure formed by the tetrahedral coordination of zinc to the four consensus ligands is required for trans-activation or, possibly, that one of several neighboring histidine residues in various combinations with three of the consensus cysteine residues normally coordinates zinc.
(5) While the spectroscopic properties indicate an exclusively tetrahedral type of metal-thiolate sulfur coordination for the binding of the first six metal ions, they suggest that the seventh metal ion is coordinated in a different fashion.
(6) Circular dichroic (CD) and magnetic CD spectra indicate that the first Co2+ binding site is tetrahedral-like and that the second is octahedral-like.
(7) The perchlorate ion just fails to have regular tetrahedral geometry within the experimental error, and has an average Cl-O bond length of 1.433 (6) A.
(8) The Co(II) protein shows a set of d-d absorption bands typical of a tetrahedral Co(II) complex at 695 (epsilon = 565 M-1 cm-1), 642 (epsilon = 655 M-1 cm-1), and 615 nm (epsilon = 510 M-1 cm-1) and two intense bands at 349 (epsilon = 2460 M-1 cm-1) and 314 nm (epsilon = 4240 M-1 cm-1) typical of Co(II)----(-)S- charge transfer.
(9) The glycol moiety in this novel acid, dihydroxyethylene isostere, is suggested to act as a transition-state analogue and mimics the tetrahedral intermediate formed during the enzyme-catalyzed hydrolysis of the peptidic bond.
(10) Moreover, a considerable deviation from a spherical or tetrahedrally symmetric structure of alpha-crystallin is inferred.
(11) A protein is represented by a self-avoiding path of connected vertices on a tetrahedral lattice, with several amino acid residues assigned to each lattice vertex.
(12) The ion is co-ordinated by three histidine residues, 26, 81 and 167, and one aspartic acid residue, 173, in a tetrahedral arrangement strongly distorted towards trigonal pyramidal.
(13) We now report the rates of formation of enzyme-inhibitor complexes of two types, those which do and those which do not form such tetrahedral intermediates.
(14) The phase has been characterised as a phosphorus deficient dahllite variant of apatite in which the crystal structure has been weakened by the incorporation of water molecules and tetrahedral hydroxyl groups in isomorphic substitution conforming with the McConnell-type defect.
(15) We have determined the effect of pH on the binding affinities of the conjugate bases of four different tetrahedral oxyacids to the sulfate-binding protein.
(16) This change in protein conformation both exposes a cryptic protein pocket on each subunit to which phenol binds and forces the HisB10 zinc sites to undergo a change in coordination geometry from octahedral to tetrahedral [Derewenda, U., Derewenda, Z., Dodson, E. J., Dodson, G. G., Reynolds, C. D., Smith, G. D., Sparks, C., & Swensen, D. (1989) Nature 338, 593-596].
(17) The boron atom is coordinated tetrahedrally, with one of the two additional boronic acid oxygen atoms lying in the "oxyanion hole" and the other at the leaving group site identified in previous studies (ROBERTUS, J.D., Kraut, J. ALDEN, R.A., and BIRKTOFT, J.J. (1972) Biochemistry 11, 4293-4303).
(18) The spectrum of the low-affinity site (A site) shows two absorption maxima at 505 nm and 586 nm with epsilon values of 170 M-1 cm-1 and 240 M-1 cm-1, respectively, which indicates a distorted tetrahedral or pentacoordinated complex structure as also observed for the enzyme from Streptomyces violaceoruber [Callens et al.
(19) The possibility of accumulating a tetrahedral intermediate during the papain-catalysed hydrolysis of Z-Lys-pNA is discussed.
(20) These observations are in accord with the view that the reaction involves enzyme-bound phosphorylated intermediates and provide evidence for a phosphorylated tetrahedral intermediate, whose formation is required for coupling.