What's the difference between leaf and rib?

Leaf


Definition:

  • (n.) A colored, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage.
  • (n.) A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril.
  • (n.) Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides. (b) A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. (c) The movable side of a table. (d) A very thin plate; as, gold leaf. (e) A portion of fat lying in a separate fold or layer. (f) One of the teeth of a pinion, especially when small.
  • (v. i.) To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May.

Example Sentences:

  • (1) The dumplings could also be served pan-fried in browned butter and tossed with a bitter leaf salad and fresh sheep's cheese for a lighter, but equally delicious option.
  • (2) Subsequently the plant protein was partially purified from leaf extract.
  • (3) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (4) Isolated nuclei from green leaf tissue of tomato plants infected with potato spindle tuber viroid (PSTVd) were bound to microscope slides, fixed with formaldehyde and hybridized with biotinylated transcripts of cloned PSTVd cDNA.
  • (5) The nuclear membrane was highly deformed with a leaf-like profile in cross-section, possibly due to an interaction with the rod-like, condensed chromosomes.
  • (6) The mass of glycolic acid recovered from sunflower leaf tissue was proportional to the amount of tissue extracted.
  • (7) cDNA clones of potato virus X (PVXcp strain), potato virus Y (PVYo strain), potato leaf roll virus (PLRV) and potato spindle tuber viroid (PSTV) were used separately or combined for the detection of the corresponding RNAs in extracts of infected plants.
  • (8) Positive cDNA clones isolated from both a pea leaf and embryo lambda gt11 expression library using an antibody raised against the purified lipoamide dehydrogenase proved to be the product of a single gene.
  • (9) Betel leaf extract at the dose levels used in the present study did not affect the body weight gain among rats.
  • (10) Poison oak, ivy, and sumac dermatitis is a T-cell-mediated reaction against urushiol, the oil found in the leaf of the plants.
  • (11) Leaf TBC was usually third while fiber had the least TBC.
  • (12) Using this estimate, the pure Photosystem I emission spectrum was subtracted from the measured emission spectrum of a flashed leaf to give an emission spectrum representative of pure Photosystem II fluorescence at -196 degrees C. Emission spectra were also measured on flashed leaves which had been illuminated for several hours in continuous light.
  • (13) The effect of 50% methanolic extract (U-ext) from Bearberry leaf on immuno-inflammation was studied by contact dermatitis caused by picryl chloride (PC-CD) in mice.
  • (14) Several antisera from rabbits immunized with tobacco smoke components reacted by immunoprecipitation with tobacco smoke or leaf antigens.
  • (15) DNP treatment reduced ion absorption by leaf tissue.
  • (16) Instead, cell divisions are gradually restricted to the base of the leaf with localized sites of increased division at the preligule region.
  • (17) In the leaf-nosed bat, Macrotus californicus, a 4.5-month period of delayed early embryogenesis (October-March) precedes a 3.5-month period of normal embryogenesis (March-June).
  • (18) Plastic responses in leaf form resulting from ontogenetic or external influences are initiated very early in primordial development and are brought about by effects on the rate and direction of cell division and expansion in different regions of the primordium.
  • (19) Northern blot analysis of infected leaf tissue extracts revealed the presence of an oligomeric series of plus RNAs (of monomer size and greater) but minus RNAs were present only as high molecular weight species of heterogeneous size.
  • (20) And, hey, until Friday morning, most surveillance reform advocates were worried about the Senate ramming through the currently neutered version of the USA Freedom Act as its fig leaf of reform, before going back to business as usual and proposing bills that will give the NSA more power – not less.

Rib


Definition:

  • (n.) One of the curved bones attached to the vertebral column and supporting the lateral walls of the thorax.
  • (n.) That which resembles a rib in form or use.
  • (n.) One of the timbers, or bars of iron or steel, that branch outward and upward from the keel, to support the skin or planking, and give shape and strength to the vessel.
  • (n.) A ridge, fin, or wing, as on a plate, cylinder, beam, etc., to strengthen or stiffen it.
  • (n.) One of the rods on which the cover of an umbrella is extended.
  • (n.) A prominent line or ridge, as in cloth.
  • (n.) A longitudinal strip of metal uniting the barrels of a double-barreled gun.
  • (n.) The chief nerve, or one of the chief nerves, of a leaf.
  • (n.) Any longitudinal ridge in a plant.
  • (n.) In Gothic vaulting, one of the primary members of the vault. These are strong arches, meeting and crossing one another, dividing the whole space into triangles, which are then filled by vaulted construction of lighter material. Hence, an imitation of one of these in wood, plaster, or the like.
  • (n.) A projecting mold, or group of moldings, forming with others a pattern, as on a ceiling, ornamental door, or the like.
  • (n.) Solid coal on the side of a gallery; solid ore in a vein.
  • (n.) An elongated pillar of ore or coal left as a support.
  • (n.) A wife; -- in allusion to Eve, as made out of Adam's rib.
  • (v. t.) To furnish with ribs; to form with rising lines and channels; as, to rib cloth.
  • (v. t.) To inclose, as with ribs, and protect; to shut in.

Example Sentences:

  • (1) In reconstruction of the orbital floor, homograft lyophilised dura or cialit-stord rib cartilage are suitable, but the best materials are autologous cartilage or silastic or teflon.
  • (2) There is approximately a 25% decrease in aggregation from regions of the rib distal to the metaphyseal-growth plate junction (69%) to the region proximal to it (50%).
  • (3) The patient had experienced repeated spontaneous fractures for 1.5 years such as serial rib fractures, fractures of the sternum and most recently fracture of the neck of the femur after a minimal trauma.
  • (4) Microsurgical anastomoses were performed for revascularizing the rib graft.
  • (5) The resections included an average of three ribs (range, two to five) and, in seven cases, part or all of the sternum.
  • (6) Arterial complications are usually associated with cervical ribs or rudimentary first ribs, but 12 per cent have occurred in patients with no osseous abnormality.
  • (7) The three different layers of this tissue are: the outer fibrous layer, the central part called proliferation zone and the inner part towards the underlying rib called transition zone.
  • (8) Statistical analysis of the findings indicates that there is no significant difference in bone-remodeling activity between similar sites on alternate ribs.
  • (9) The rib was the most frequent site of the former; the distal femur, of the latter.
  • (10) Radiologically, the clavicles, the sternum and the first ribs are grossly enlarged with complete fusion between them.
  • (11) To test the hypothesis that during unsupported arm exercise (UAE) some of the inspiratory muscles of the rib cage partake in upper torso and arm positioning and thereby decrease their contribution to ventilation, we studied 11 subjects to measure pleural (Ppl) and gastric (Pga) pressures, heart rate, respiratory frequency, O2 uptake (VO2), and tidal volume (VT) during symptom-limited UAE.
  • (12) Upper thoracic fractures that involved the clavicles, scapula, sternum, and ribs were present in four patients.
  • (13) The left subclavian artery was prominent in 33 cases, signs indicating a collateral circulation (rib notching, internal mammary artery) were present in 26 cases.
  • (14) Definitive evidence for poly(ADP-Rib) polymerase activity is localized within internucleosomal "linker" regions of HeLa cell chromatin is presented.
  • (15) 1) Rates of purine synthesis de novo are regulated at both the PP-Rib-P synthetase and amido PRT reactions by end products, with the latter reaction more sensitive to small changes in purine nucleotide inhibitor concentrations.
  • (16) Five of 20 ambulatory patients and 8 of 10 patients in acute respiratory failure showed inward abdominal motion coincident with outward rib cage motion during inspiration, suggesting ineffective diaphragmatic function.
  • (17) Abnormal radionuclide concentrations were observed in the sternoclavicular, sternocostal, and manubriosternal joints, in the ribs, and in the sternum.
  • (18) This is the first report of detection of tenascine in rib cartilage matrix of human embryos.
  • (19) This pattern of EMG activity was associated with profound deformations of the rib cage.
  • (20) Constant ribbing about his private life was compromising Deayton's position as the show's "holier-than-thou" host, who showed no mercy towards politicians or celebrities caught in a similar position, the corporation added.

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