What's the difference between couple and twin?

Couple


Definition:

  • (a.) That which joins or links two things together; a bond or tie; a coupler.
  • (a.) Two of the same kind connected or considered together; a pair; a brace.
  • (a.) A male and female associated together; esp., a man and woman who are married or betrothed.
  • (a.) See Couple-close.
  • (a.) One of the pairs of plates of two metals which compose a voltaic battery; -- called a voltaic couple or galvanic couple.
  • (a.) Two rotations, movements, etc., which are equal in amount but opposite in direction, and acting along parallel lines or around parallel axes.
  • (v.) To link or tie, as one thing to another; to connect or fasten together; to join.
  • (v.) To join in wedlock; to marry.
  • (v. i.) To come together as male and female; to copulate.

Example Sentences:

  • (1) Spermine clearly activated 45Ca uptake by coupled mitochondria, but had no effect on Ca2+ egress from mitochondria previously loaded with 45Ca.
  • (2) After transfection in CH4C1 cells the two isoforms are coupled with adenylate cyclase while only the shortest isoform appears negatively coupled to phospholipase C. Functional D2 dopamine receptors are present in human prolactinomas.
  • (3) Ferrocene derivatives, in general, show a degree of versatility, coupling the electron-transfer reactions of many enzymes.
  • (4) Since intracellular Ca2+ seems to play a role in stimulus-secretion coupling and ion movements, several aspects of Ca2+ homeostasis have been investigated in CF.
  • (5) Couples in need of help will be "encouraged" to come to a private agreement.
  • (6) To get a better understanding of the different cell interactions during the immune response to a hapten-carrier complex, the effects of immunogenic or tolerogenic injections of various hapten-containing compounds on the responses induced by immunization with the same hapten coupled to protein carriers were studied.
  • (7) Such a science puts men in a couple of scientific laws and suppresses the moment of active doing (accepting or refusing) as a sufficient preassumption of reality.
  • (8) In contrast, strains carrying the substitutions Ile-30----Phe, Gly-33----Leu, Gly-58----Leu, and Lys-34----Val and the Lys-34----Val, Glu-37----Gln double substitution were found to possess a coupled phenotype similar to that of the wild type.
  • (9) Couples applying to in vitro fertilization were admitted into this project when the sperm concentration was greater than 20 million per mL and motility greater than 30 per cent.
  • (10) Large emission intensity fluctuations are observed from analyte species in inductively coupled plasmas.
  • (11) At the weekend the couple’s daughter, Holly Graham, 29, expressed frustration at the lack of information coming from the Foreign Office and the tour operator that her parents travelled with.
  • (12) These results coupled with previous studies support activation of benz[j]aceanthrylene via both 2 and cyclopenta ring epoxidation.
  • (13) Homologous insemination in 52 couples during a period of one year yields a conception rate of 38.5%.
  • (14) Following the hypothesis that infertile patients may present emotional conflicts with regard to the wish of having a child, psychodynamic interviews were carried out with 116 infertile couples concomitantly with their first consultation at the Sterility Department.
  • (15) The objective of this work was to determine the efficacy of an endoscopic approach coupled to a Nd:YAG laser fiber in performing arytenoidectomy.
  • (16) During the couple's 30-year marriage she had twice reported him to the police for grabbing her by the throat, before they divorced in 2005.
  • (17) The rate of indole production is increased about 4-fold when the aminoacrylate produced is converted to S-(hydroxyethyl)-L-cysteine by a coupled beta-replacement reaction with beta-mercaptoethanol.
  • (18) Single injections never produced more than one coupled pair in P20 or older rats.
  • (19) The extensive conversion of anti-BPDE to B[a]PT-10-sulfonate under conditions where sulfite enhances diolepoxide mutagenicity, when coupled with this enhancement of diolepoxide mutagenicity by B[a]PT-10-sulfonate in the reverse mutation assay, supports this novel B[a]P derivative as a mediator of the sulfite-dependent enhancement of B[a]P genotoxicity.
  • (20) Bobbing in warming waters, this ancient ice fossil will be gone in a couple of weeks.

Twin


Definition:

  • (a.) Being one of two born at a birth; as, a twin brother or sister.
  • (a.) Being one of a pair much resembling one another; standing the relation of a twin to something else; -- often followed by to or with.
  • (a.) Double; consisting of two similar and corresponding parts.
  • (a.) Composed of parts united according to some definite law of twinning. See Twin, n., 4.
  • (n.) One of two produced at a birth, especially by an animal that ordinarily brings forth but one at a birth; -- used chiefly in the plural, and applied to the young of beasts as well as to human young.
  • (n.) A sign and constellation of the zodiac; Gemini. See Gemini.
  • (n.) A person or thing that closely resembles another.
  • (n.) A compound crystal composed of two or more crystals, or parts of crystals, in reversed position with reference to each other.
  • (v. i.) To bring forth twins.
  • (v. i.) To be born at the same birth.
  • (v. t.) To cause to be twins, or like twins in any way.
  • (v. t.) To separate into two parts; to part; to divide; hence, to remove; also, to strip; to rob.
  • (v. i.) To depart from a place or thing.

Example Sentences:

  • (1) All the twins were born in years 1973-1987, the total number was 2,226 boys and 2,302 girls.
  • (2) Plasma renin activity (PRA) and aldosterone concentration were measured before and during submaximal exercise in 10 male monozygotic twin pairs who were discordant for smoking.
  • (3) Symmetrical cases (the so-called siamese twins) have an obvious predominance (92.3%).
  • (4) From the 32nd week on, the twins' mean weekly BPD increment decreased, this lesser growth rate being more marked than that of singletons.
  • (5) In the UK the twin threat of Ukip and the BNP tap into similar veins of discontent as their counterparts across the English channel.
  • (6) There it was found she was not carrying twins but her baby remained in hospital for some weeks with respiratory problems.
  • (7) Therefore, we conclude that monochorionic twins can be considered monozygotic.
  • (8) A planet with conditions that could support life orbits a twin neighbour of the sun visible to the naked eye, scientists have revealed.
  • (9) Presented is the case of a triplet pregnancy with conjoined twins diagnosed antenatally with sonography.
  • (10) This was either giant teratoma of placenta or malformed twin foetus.
  • (11) Blood samples were obtained from 18 twin pairs, and the major prostaglandin E2 (PGE2) plasma metabolite 15-keto-13,14-dihydro-PGE2 was measured by RIA after its conversion to 11-deoxy-15-keto-13,14-dihydro-11 beta,16 xi-cyclo-PGE2.
  • (12) Given his background, Boyle says, growing up in a council house near Bury, with his two sisters (one a twin) and his strict and hard-working parents (his mum worked as a dinner lady at his school), he should by rights have been a gritty social realist, but that tradition never appealed to him.
  • (13) The affected twin had classical loss of sc fat from her face, upper arms, and trunk as well as associated hypocomplementemia, microscopic hematuria, and a borderline oral glucose tolerance test without hyperinsulinism.
  • (14) Neuropsychological testing of the affected twin demonstrated marked deficits in all areas of cognitive function.
  • (15) Therefore, this study evaluates the validity of zygosity diagnosis based on examination of placental membranes, and at the same time evaluates Weinberg's differential rule in a Danish consecutive twin series.
  • (16) Having already seen off the Winklevoss twins who claimed he stole the idea for Facebook from them , Zuckerberg now faces a convicted fraudster who says he has a contract giving him 84% of the social network.
  • (17) These adjusted correlation coefficients in MZ twins are 0.5 for both K1 and K5 blood pressure.
  • (18) Significant intraclass coefficients were observed in MZ twins for the different expressions of RMR.
  • (19) However, after the exclusion of cases with congenital abnormality association of low birth weight newborn infants and with genital anomalies of the male, the twin birth rate was 1.8 per cent.
  • (20) The size of right and left middle phalanges in the II-V fingers and the III finger have been studied in 108 pairs of monozygotic and dizygotic twins at 8--19 years of age and in 60 paris (pedagogical experiment) of separated twins (from the same pair), schoolchildren of the 2d--5th forms trained according different programs of physical culture.