What's the difference between island and isthmus?

Island


Definition:

  • (n.) A tract of land surrounded by water, and smaller than a continent. Cf. Continent.
  • (n.) Anything regarded as resembling an island; as, an island of ice.
  • (n.) See Isle, n., 2.
  • (v. t.) To cause to become or to resemble an island; to make an island or islands of; to isle.
  • (v. t.) To furnish with an island or with islands; as, to island the deep.

Example Sentences:

  • (1) On Friday night, in a stadium built in an area once deemed an urban wasteland, the flame that has journeyed from Athens to every corner of these islands will light the fire that launches the London Olympics of 2012.
  • (2) If Charles Spencer, 3rd Duke of Marlborough, who bought the island in 1738, were to return today he would doubtless recognise the scene, though he might be surprised that his small private buildings have grown into a sizable hotel.
  • (3) Given Australia’s number one position as the worst carbon emitter per capita among major western nations it seems hardly surprising that islanders from Fiji, Samoa, Vanuatu and other small island developing states have been turning to Australia with growing exasperation demanding the country demonstrate an appropriate response and responsibility.
  • (4) Photograph: Guardian The research also compiled data covered by a wider definition of tax haven, including onshore jurisdictions such as the US state of Delaware – accused by the Cayman islands of playing "faster and looser" even than offshore jurisdictions – and the Republic of Ireland, which has come under sustained pressure from other EU states to reform its own low-tax, light-tough, regulatory environment.
  • (5) A full-scale war is unlikely but there is clear concern in Seoul about the more realistic threat of a small-scale attack on the South Korean military or a group of islands near the countries' disputed maritime border in the Yellow Sea.
  • (6) The matter is now in the hands of the Guernsey police and the law officers.” One resident who is a constant target of the paper and has complained to police, Rosie Guille, said the allegations had a “huge impact on morale” on the island.
  • (7) Relative to the perceived severity of their asthma, both Maoris and Pacific Islanders lost more time from work or school and used hospital services more than European asthmatics using A & E. The increased use of A & E by Maori and Pacific Island asthmatics seemed not attributable to the intrinsic severity of their asthma and was better explained by ethnic, socioeconomic and sociocultural factors.
  • (8) A programme is described in which indigenous personnel are trained to provide culturally appropriate rehabilitation services for islanders of the Pacific Basin.
  • (9) Stimuli presented to this island could be detected and discriminated, although the subject reported he did not see them.
  • (10) Tepco has taken on a US consultant, Lake Barrett , who led the NRC's cleanup of Three Mile Island, the worst commercial nuclear power accident in the nation's history.
  • (11) Features of barrier island physiography and ecology were studied relative to selective bait deployment and site biosecurity.
  • (12) In a second phase of the study, a comparison was made between mortality rates of male and female progeny of White Leghorn-Rhode Island Red reciprocal crosses.
  • (13) Hospital discharge summary data were used to identify and study all 2,870 Rhode Island residents hospitalized in-state with head injuries during 1979 and 1980.
  • (14) The arrival on Monday was another first for the two countries since Barack Obama and Cuban President Raúl Castro announced a historic rapprochement in December 2014, and comes weeks after Obama’s visit to the Caribbean island.
  • (15) A fortnight ago the two countries signed a US$27 million deal to tackle deforestation on the island of Sumatra - a key problem in Indonesia where 80 per cent of emissions come from deforestation, both by legal and illegal loggers.
  • (16) There was an upstream "HTF" island (Hpa II tiny fragments) followed by four direct repeats of the "chorion box" enhancer.
  • (17) They’ve already collaborated with folks like DOOM, Ghostface Killah and Frank Ocean; I was lucky enough to hear a sneak peek of their incredible collaboration with Future Islands’ Sam Herring from their forthcoming album.
  • (18) In Tokyo, the US president warned China against forcibly pressing its maritime claims, following Beijing's unilateral declaration last autumn of an air exclusion zone over Japanese-controlled islands in the East China Sea.
  • (19) Nicholas Shaxson – the author of Treasure Islands, a book about the world of tax evasion – described the demands as "incredibly powerful".
  • (20) The Rhode Island Democrat got his start in national politics in 1999 when he was appointed to the Senate as a Republican after his father’s death.

Isthmus


Definition:

  • (n.) A neck or narrow slip of land by which two continents are connected, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc.

Example Sentences:

  • (1) To explore relations between preload, afterload, and stroke volume (SV) in the fetal left ventricle, we instrumented 126-129 days gestation fetal lambs with ascending aortic electromagnetic flow transducers, vascular catheters, and inflatable occluders around the aortic isthmus (n = 8) or descending aorta (n = 7).
  • (2) Resection of the peritracheal segments of the thyroid gland with the isthmus extirpation was performed.
  • (3) Detection of PGE2-specific binding in the oviductal isthmus on Day 2 and Day 5 indicates that the oviduct is responsive to PGE2 when it is capable of transporting equine embryos.
  • (4) In control tissues there was a significant variation in vascularity according to geographic location in the following order of magnitude: fundus greater than corpus greater than cornua greater than isthmus.
  • (5) Inaccurate IFS diagnosis of depth of myometrial invasion can occur when tumor involves the uterine isthmus or cornua and when tumor invades areas of adenomyosis.
  • (6) Marginal overhang was the prevailing type of failure (17%), recurrent caries occurred at 12% of the restorations, unacceptable proximal contact at 10%, unacceptable marginal adaptation at 8% and isthmus fractures at 2%.
  • (7) Toral neurons project to the secondary visceral nucleus of the isthmus and to the central and anterior thalamic nuclei of the dorsal thalamus.
  • (8) However, of the four children with a residual gradient greater than 20 mm Hg, two were the youngest in the study, and in two the aorta was inadvertently dilated with a balloon 4 to 5 mm smaller than the isthmus diameter.
  • (9) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
  • (10) Ganglion cells innervating the posterior canal were located in the caudal part of the inferior ganglion, while those cells innervating the saccule were located in the rostral part of the inferior ganglion, scattered in the superior ganglion, and concentrated at the junction (isthmus) between the two.
  • (11) Examination of the characteristics of the EP reveals that there is a significantly higher proportion located in the isthmus in the group of patients without an IUD, whereas the fimbrial location is more frequent among patients with an IUD.
  • (12) In addition, labelled cells were found in the torus semicircularis, in and around the nucleus isthmus pars parvocellularis.
  • (13) Ova were consistently recovered from the ampulla 24 hours after ovulation, from both the ampulla and isthmus at 48 hours, and from the uterus 72 hours after ovulation.
  • (14) Some metric parameters (height and width, sizes of the isthmus the an angle between the corns) are given with the purpose of greater precision of roentgenological interpretation.
  • (15) A biopsy was taken from the mucosa of the intramural part, isthmus, and ampulla in each tube.
  • (16) End diastolic flow velocity just beneath the aortic isthmus was measured within 72 hours of cardiac catheterisation by pulsed Doppler echocardiography in 30 controls and 61 patients with aortic regurgitation.
  • (17) Microsurgical anastomosis restored electrical continuity between anastomosed segments in both the ampulla and isthmus.
  • (18) One of them was located at mid-descending thoracic aorta and another was aortic isthmus.
  • (19) Coitus induced ovulation produced a characteristic oviductal motility pattern consisting of (i) initial relaxation of both isthmus and ampulla (4-12 h) followed by (ii) increased isthmic motility in the face of a continually relaxed ampulla (36-48 h), and finally phase (iii) leading to restitution of both ampullary and isthmic motility to the base-line at 72-96 h. Estimation of ova positions indicated the presence of fertilized eggs in the ampulla and ampullo-isthmic junction at 48 h and the ova could come to the end of the isthmic segment only at 72 h or after.
  • (20) By their nature, intracoronal restorations provide resistance to nonaxial dislodging forces, and features such as the occlusal isthmus and proximal boxes and grooves will obviously also increase this resistance.