(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.
Lif
Definition:
(n.) The fiber by which the petioles of the date palm are bound together, from which various kinds of cordage are made.
Example Sentences:
(1) Removal of T cells with anti-T-cell serum eliminated LIF activity, indicating that in humans it is probably the T cell that produces LIF.
(2) Leukemia inhibitory factor (LIF) and interleukin-6 (IL-6) are multifunctional cytokines with many similar activities.
(3) Similarities between the LIF spectra of atherosclerotic plaque and collagen and normal aorta and elastin were noted.
(4) LIF inhibits differentiation under several conditions which lead to endodermal and mesodermal cell lineages including skeletal and cardiac muscle.
(5) In both actively growing and growth-arrested rat osteoblasts, LIF stimulated [3H]thymidine incorporation in a dose-dependent manner.
(6) Binding of activation protein (AP)-1 and NF-IL-6, also known to transcriptionally activate the IL-6 promoter, was not inducible by LIF.
(7) The 4.0-kb LIF transcript from TE cell-derived total RNA corresponded in size to the LIF transcripts in PMA-activated T lymphocytes.
(8) A hypothesis is formulated that Concanavalin A-induced release of LIF may reflect the competence of suppressor T-lymphocytes in man.
(9) alpha-N-benzoyl-L-arginine ethylester (BAEE), a typical trypsin substrate, and bis-p-nitrophenyl phosphate (BNPP), a phosphodiester, were the only esters capable of retaining LIF activity in the presence of PMSF.
(10) The site of the most abundant LIF expression is the uterine endometrial glands, specifically on day 4 of pregnancy.
(11) The variation of the sensitivity of radiochromic film with photon energy is considerably less than that for silver halide film and similar to that for LiF TLDs, but in the opposite direction.
(12) Both T and B lymphocytes are known to produce leukocyte migration inhibitory factor (LIF) after appropriate activation.
(13) Preliminary characterization of these mediators by Sephadex G-100 gel filtration suggests that they are similar to antigen- and concanavalin A-induced MIF and LIF, eluting in the 25000 m.w.
(14) -- Cord blood lymphocytes show a normal capacity to elaborate the two lymphocytes LIF and LMF.
(15) Recombinant LIF improves the development of murine and ovine blastocysts in culture although there is some species specificity with respect to the type of LIF that is bioactive.
(16) Only one, the thrombin- and trypsin-specific benzoyl-phenylalanyl-valyl-agarine-p-nitroanilide, possessed high affinity for the LIF molecule and may therefore prove to be a potent substrate for this lymphokine.
(17) B cells might store presynthetized LIF in lysosomic granulae which will be degranulated very early after activation.
(18) The ovine and porcine LIF genes were cloned, sequenced and compared to the previously published murine and human LIF gene sequences.
(19) Leukemia inhibitory factor, LIF, is a glycoprotein with multiple activities in both the adult and the embryo.
(20) Biologically active LIF is present in synovial fluids from patients with osteoarthritis and at higher titers in samples from patients with rheumatoid arthritis.