What's the difference between ledge and sill?

Ledge


Definition:

  • (n.) A shelf on which articles may be laid; also, that which resembles such a shelf in form or use, as a projecting ridge or part, or a molding or edge in joinery.
  • (n.) A shelf, ridge, or reef, of rocks.
  • (n.) A layer or stratum.
  • (n.) A lode; a limited mass of rock bearing valuable mineral.
  • (n.) A piece of timber to support the deck, placed athwartship between beams.

Example Sentences:

  • (1) This bony strut reduces inferomedial displacement of the muscle cone and provides a medial supporting "ledge" in cases requiring late orbital reconstruction.
  • (2) The continuous ledge will be covered with a cast continuous bar, intended to restore the lingual crown morphology.
  • (3) The number of two-year sojourns in a hospital and other data are reported on the basis of an evaluation of the signature ledges of the clinical histories in the district Dresden.
  • (4) In April 2001, he secured the con- viction of Klan member Thomas Blanton for driving the men to the church in the middle of the night to lay a dozen sticks of dynamite on the window ledge.
  • (5) The ledges of some pleats partly grow toward each other as ring like diaphragms, leaving openings whose boundary is composed of alveolar epithelium separated by a basal lamina from a connective tissue sheath with capillaries.
  • (6) All the determinants for ledging were not identified with this study, and further research is indicated.
  • (7) In the outer and middle layers of the spiny deposits, the Ca, P, and Mg concentrations were all significantly higher than those of the ledge-type deposits.
  • (8) Calculus components of the ledge-type deposits contained crystal types quite similar to sandy grain-shaped hydroxyapatite (HAP), plate-shaped octacalcium phosphate (OCP), and hexahedral Mg-containing whitlockite (WHT).
  • (9) Geologists sort the waterfalls into two types: wedding-cake falls, which descend in multiple tiers, and bridal-veil falls, that plunge over a ledge into a pool.
  • (10) Ridge POAMES occurred most frequently, followed by combined, ledge and the nodular exostose types.
  • (11) The edges of the breaks appear clinically as glassy ridges or ledges and are also called Haab's lines.
  • (12) 15 had a significantly higher incidence of ledging.
  • (13) Hypoplasia of the labial enamel of 15 out of 19 teeth from sheep killed after recovery from the infection was classified according to the extent and depth as pits, grooves or larger areas of missing enamel with ledge-formation cervically.
  • (14) Immature spores in the strain studied had a ledge which disappeared during maturation.
  • (15) Shaping effectiveness of the tested files was qualitatively evaluated in terms of respect for conservation of the apical constriction and the presence or absence of ledging, specially in the apical third of the root canals.
  • (16) By following the continental ledge in search of sardines, sardinella, and mackerel, it hopes to catch 3,000 tonnes of fish in a four- to six-week voyage before it offloads them, possibly in Las Palmas in the Canary Islands.
  • (17) This preliminary study suggests that such a wheelchair feature might improve the safety of wheelchairs in conditions involving inadvertent loss of caster support, as when they drop off a stair or ledge.
  • (18) A complicated system of low lying slanting, diagonal mucosal ledges forms between the tall longitudinal folds.
  • (19) Ten of the 107 had small enamel fractures, primarily occurring on cingulum ledges.
  • (20) Each of the nine objects was placed on a ledge inside a dummy television screen next to the video screen, the food items alternating with the neutral objects, and 20 female patients with anorexia nervosa and 20 female controls matched for age were asked to adjust the size of the video recording to that of the real object.

Sill


Definition:

  • (n.) The basis or foundation of a thing; especially, a horizontal piece, as a timber, which forms the lower member of a frame, or supports a structure; as, the sills of a house, of a bridge, of a loom, and the like.
  • (n.) The timber or stone at the foot of a door; the threshold.
  • (n.) The timber or stone on which a window frame stands; or, the lowest piece in a window frame.
  • (n.) The floor of a gallery or passage in a mine.
  • (n.) A piece of timber across the bottom of a canal lock for the gates to shut against.
  • (n.) The shaft or thill of a carriage.
  • (n.) A young herring.

Example Sentences:

  • (1) It's fairly cheap and easy to capture, too: best shot from a moving Peugeot 207, with the camera balanced on the sill of a half-opened side window.
  • (2) For example, nasal reconstruction may be secondary to repair of deformities of the sill, rim, limen nasi, septum, or nasal bones.
  • (3) Philtrum length, philtrum shape, philtrum depth, nasolabial triangular area, vermilion thickness, Cupid's bow peak, horizontal upper lip groove, vermilion border, alar size, depth of alar groove, nasal deviation, nostril shape, nasal tip, columella height, sill shape, columella width, and facial balance of the anterior, profile, and caudal views are used as aesthetic checkpoints for the results of a cleft lip operation.
  • (4) The lengthening and lowering of the short and sometimes retracted columella and narrowing of the alar bases is performed by making a columellar splitting incision and extending it along the alar sills.
  • (5) Accumulation of the bacterial plaque on materials used for cosmetic fillings was comparatively evaluated against that on the dental enamel of males and females aged 40-50 yr using the index of Löe & Sillness.
  • (6) Fewer short-term illnesses were reported by postpartum women than sill-pregnant women, suggesting the potential for recall bias or loss.
  • (7) Junior to and often feistier than the Metropolitan Opera, City Opera was a spawning ground for top opera talent that included Beverly Sills, Placido Domingo, Renee Fleming and Samuel Ramey.
  • (8) The change in (subischial leg length (SILL)--sitting height (SH)) standard deviation score (SDS) was used as an index of disproportionate segmental growth, which allowed the influence of growth hormone deficiency on growth to be discounted.
  • (9) The findings of this study with respect to retention of continuous and discrete psychomotor sills closely parallel findings of the three-month retention study.
  • (10) Significant increases were also observed in the height SDS for bone age (BA), sitting height (SH) SDS and subischial leg length (SILL) SDS.
  • (11) This reduction in spinal growth is reflected by a strongly positive disproportion score (DPS; [SILL SDS-S.HT SDS] + 2.81).
  • (12) Nasal floor excess is improved by an excision of the nasal sill.
  • (13) The limited effectiveness of esculin, a glycoside of 6,7-dihydroxycoumarin prompted research which led to the synthesis of other compounds of the same class, many of which have proved useful as whiteners; though the really broad developments of the 1940's stemmed from the synthesis of the 4,4'-diaminostilbene-2,2'disulfonic acid derivatives which are sill the most important groups of FWAs.
  • (14) Breakfast in bed, with juice congealing on the sill: pages and pages began to pour out again.
  • (15) If irradiated peripubertally, annual change in (SILL-SH) SDS to final height was +0.22 SD 0.23, not significantly different from the change over puberty in the prepubertal group.
  • (16) The lateral subunit is bordered by philtrum column, nostril sill, alar base, and nasolabial crease, while the medial topographic subunit is one-half the philtrum.
  • (17) This C-junction of the nostril sill allows an alignment of the nasal structure without a primary rhinoplasty.
  • (18) Either dry or humit warm-air inhalations with coniferous oil additives were prescribed depending on the type of sillness.
  • (19) The aspidistra of the book's title comes from the pot plants to be found on every window sill which, for Comstock, symbolise all that is wrong with the "mingy, lower-class decency" he is desperate to escape.
  • (20) The glacier has now become detached from a stabilising sill and is losing ice at a rate of 4.5bn tonnes a year.