(n.) The collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.
(n.) One the above-mentioned filaments, consisting, in invertebrate animals, of a long, tubular part which is free and flexible, and a bulbous root imbedded in the skin.
(n.) Hair (human or animal) used for various purposes; as, hair for stuffing cushions.
(n.) A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.
(n.) An outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated. Internal hairs occur in the flower stalk of the yellow frog lily (Nuphar).
(n.) A spring device used in a hair-trigger firearm.
(n.) A haircloth.
(n.) Any very small distance, or degree; a hairbreadth.
Example Sentences:
(1) Cook, who has postbox-red hair and a painful-looking piercing in his lower lip, was now on stage in discussion with four fellow YouTubers, all in their early 20s.
(2) The surface of all cells was covered by a fuzzy coat consisting of fine hairs or bristles.
(3) We have isolated a murine cDNA clone, pCAL-F559, for the calcium-binding protein calcyclin by differential screening of a cDNA library made from RNA isolated from hair follicles of 6-d-old mice.
(4) White hair bulbs which demonstrated no TH activity formed 2SCD, but not 5SCD.
(5) Isolated outer hair cells from the organ of Corti of the guinea pig have been shown to change length in response to a mechanical stimulus in the form of a tone burst at a fixed frequency of 200 Hz (Canlon et al., 1988).
(6) We have reported on a simple and secure method of tying up hair during transplantation surgery for alopecia.
(7) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
(8) Tumors were induced in athymic, T-cell-deficient nude mice and in syngeneic normal haired mice by treatment with low doses of 3-methylcholantrene (MCA).
(9) As I looked further, I saw that there was blood and hair and what looked like brain tissue intermingled with that to the right area of her skull."
(10) A new method of staining the keratin filament matrix allowing a visualization of the filaments in cross section of hair fibres has been developed.
(11) However, in subjects with alopecia there was no such difference and the growth rate of all the hairs showed a continuous distribution.
(12) No infection threads were found to penetrate either root hairs or the nodule cells.
(13) After 7 days, various stages of sensory hair degeneration could be observed.
(14) This review of androgenetic alopecia (AA) in women provides a summary of hair physiology and biochemistry, a general discussion of AA, and a brief description of other types of hair loss in women.
(15) Subungual hair penetration appears to be much less common.
(16) Steep longitudinal and transverse gradients of glycogen are known to exist in the organ of Corti of the guinea pig, with preferential accumulation in the outer hair cells of the apical turns.
(17) Of four normal tissues assessed, two (hair follicles and tissues responsible for development of leg contractures) showed no change in radioresponse after treatment with indomethacin, one (hematopoietic tissue) exhibited radioprotection, and one (jejunum) exhibited slight radiosensitization (enhancement factor, 1.12).
(18) On the other hand, the total number of missing hair cells, irrespective of location, was a good, general indicator of the hearing capacity in a given ear.
(19) The objective was to determine whether the parent axonal impulse train elicited by dual-hair stimulation was due to a temporal combining ("mixing"; Fukami, 1980) of the impulse trains elicited in the parent axons by the same stimulation to each hair alone.
(20) In addition to descriptions of variants of the root appearance for hairs removed from follicles in the three classical growth phases, several other commonly occurring root configurations are described and illustrated with photomicrographs.
Hairless
Definition:
(a.) Destitute of hair.
Example Sentences:
(1) Single postganglionic neurones to hairy skin and hairless skin of the hindleg were investigated on spinal cord heating and spinal cord cooling in chloralose anesthetized cats.
(2) Lymphocyte blastogenesis in hairless descendants of Mexican hairless dogs was examined using the following mitogens: phytohemagglutinin (PHA-M), Concanavalin A (Con A), lipopolysaccharide (LPS) and pokeweed mitogen (PWM).
(3) In the second series of studies, GTN was administered topically to freshly excised, intact hairless mouse skin in conventional in vitro diffusion cells.
(4) Experimental data are presented for: (a) the flux of diflorasone diacetate through hairless mouse skin, (b) the percutaneous penetration profile of propylene glycol, (c) the effects of vehicle concentrations of polyoxypropylene 15 stearyl ether and propylene glycol on the percutaneous flux of diflorasone diacetate, (d) skin--vehicle partition coefficients of diflorasone diacetate, (e) the solubility profile of diflorasone diacetate as a function of solvent concentration, and (f) the alteration of the skin's resistance to the penetration of diflorasone diacetate due to propylene glycol.
(5) In this study, oral therapy with vitamin A or a synthetic analogue, etretinate, was tested for ability to protect hairless mice (Skh-hr1) from the development of skin tumours following exposure to broad-band light (280-700 nm) for 25 weeks.
(6) During the early part of the experiments, when the sink condition was maintained, FAH was the most effective for hairless mouse skin, whereas Azone showed the highest effect in the rat skin.
(7) Hairless mice were irradiated three times a week for 10 weeks with sunlamps (UVA and UVB) and the skin was examined using immunochemical and biochemical techniques.
(8) From the results of mating experiments, an autosomal dominant semi-lethal gene was considered to be responsible for the hairlessness accompanied by defective teeth in the dog.
(9) Albino hairless mice (Skh:HR-1) exposed chronically to suberythemal doses of ultraviolet (UV) radiation display visible and histological alterations in the skin.
(10) An abnormal hairless mouse epidermis was produced by three different methods: ultraviolet light irradiation, topical vitamin A acid and topical acetic acid.
(11) The carcinogenic effect of 3 commercially available ultraviolet A (UVA) tanning sources was studied in lightly pigmented hairless mice.
(12) ISDN permeation through excised hairless rat skin from the different devices was measured in vitro.
(13) If it is to be denuded and buried, however, great care must be taken to select a donor area that is as hairless as possible.
(14) There are two mechanisms for flux enhancement relative to passive flux on "fresh" hairless mouse skin: (1) the effect of the voltage in increasing mass transfer over the passive diffusion level, the effect of electroosmotic flow dominating this contribution in the systems studied in this report; and (2) the effect of prior current flow in increasing the "intrinsic permeability" of the skin.
(15) A comparison of the enhancing effect of 3% 1 on permeation of 2 through rat, hairless mouse, and human cadaver skin was made.
(16) Treatment of herpes simplex virus (HSV)-infected hairless mice with a 2% phosphonoacetic acid (PAA) ointment prevented the appearance of virus-induced skin lesions and subsequent central nervous system (CNS) involvement.
(17) Hairless albino mice were painted with 8-methoxypsoralen (8-MOP) and exposed to solar simulated radiation (SSR) for 0, 3 or 6 weeks and subsequently treated with the promoter 12-O-tetradecanoylphorbol-13-acetate (TPA).
(18) Dopa phosphates have been shown to increase pigment production in the epidermis of hairless mice.
(19) Chronic irradiation (three times a week) with ultraviolet B light of the skin of hairless mouse Uscd (Hr) strains resulted in the induction of skin tumors after 25 to 41 weeks.
(20) Several physiological parameters were measured in hairless mice maintained on a diet supplemented with antioxidants.