(n.) A tuft, or other excrescence or natural ornament, growing on an animal's head; the comb of a cock; the swelling on the head of a serpent; the lengthened feathers of the crown or nape of bird, etc.
(n.) The plume of feathers, or other decoration, worn on a helmet; the distinctive ornament of a helmet, indicating the rank of the wearer; hence, also, the helmet.
(n.) A bearing worn, not upon the shield, but usually above it, or separately as an ornament for plate, liveries, and the like. It is a relic of the ancient cognizance. See Cognizance, 4.
(n.) The upper curve of a horse's neck.
(n.) The ridge or top of a wave.
(n.) The summit of a hill or mountain ridge.
(n.) The helm or head, as typical of a high spirit; pride; courage.
(n.) The ornamental finishing which surmounts the ridge of a roof, canopy, etc.
(n.) The top line of a slope or embankment.
(v. t.) To furnish with, or surmount as, a crest; to serve as a crest for.
(v. t.) To mark with lines or streaks, like, or regarded as like, waving plumes.
(v. i.) To form a crest.
Example Sentences:
(1) Hence, the absence of NGF receptors on premigratory neural crest and early migratory neural crest cultures was not due to enzymatic alterations of the receptor.
(2) Predominantly observed defects included neural crest cells in ectopic locations, both within and external to the neural tube, and mildly deformed neural tubes containing some dissociating cells.
(3) Our results suggest that cAMP may be an important regulator of phenotypic expression in at least some neural crest cell lineages.
(4) Neural crest cells give rise to various essential tissues in vertebrates.
(5) In the present study, we have compared the phosphorylation state of the fibronectin receptor in motile neural crest and somitic cells, in stationary somitic cells, and in Rous-sarcoma virus transformed-chick embryo fibroblasts, using immunoprecipitation following metabolic labeling.
(6) The staining method consisted of sequential treatment of slides with crest serum, fluorosceinated goat-antihuman and swine-antigoat antibodies, and propidium iodide.
(7) The participation of neural crest cells in development of the dermal skeleton is discussed by way of the repartition of the odontods within the pectoral fin.
(8) The talus was revascularized with a vascularized corticocancellous iliac crest bone graft.
(9) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
(10) The center of resistance was located at 0.24 times the root length measured apical to the level of alveolar crest.
(11) By means of immunoreactivity for spot 35 protein, a novel cerebellar Purkinje cell-specific protein, the regional heterogeneity among non-pigmented ciliary epithelial cells of rats was demonstrated with reference to the antero-posterior and crest-valley directions of individual ciliary epithelial folds in immature and mature eyes.
(12) This is done by scoring the septal cartilage in its basal attachment to the maxillary crest, providing a "swinging door" which can be sutured finally as desired.
(13) The type II, III, IV, and V boutons appear mature at all ages examined but crest synapses formed by the type III terminals are observed in the later stages of the study.
(14) The use of the pectoralis major muscle only flap in conjunction with a free iliac crest bone graft for reconstruction of the mandible is described.
(15) The outer coat turned to be extremely sculptured, presenting as interlaced crests of various height.
(16) The effects of AAGTP are different in nervous tissue from other tissues, and experiments with that nucleotide have led to the discovery of a new, 32 kDa GTP-binding protein which appears only in neural crest cells.
(17) The neural crest has been suggested as the origin of the ectomesenchymomas.
(18) He had huge eyes, a wide, deep brow, an angel's mouth, with the upper lip crested.
(19) We have examined the distribution and function of the defined cell adhesion molecules, N-cadherin and N-CAM, in the emigration of cranial neural crest cells from the neural tube in vivo.
(20) On E7, a slender neuropil was present in the migrating cell clusters, but all the crest derived cells were uniform.
Crust
Definition:
(n.) The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow.
(n.) The hard exterior or surface of bread, in distinction from the soft part or crumb; or a piece of bread grown dry or hard.
(n.) The cover or case of a pie, in distinction from the soft contents.
(n.) The dough, or mass of doughy paste, cooked with a potpie; -- also called dumpling.
(n.) The exterior portion of the earth, formerly universally supposed to inclose a molten interior.
(n.) The shell of crabs, lobsters, etc.
(n.) A hard mass, made up of dried secretions blood, or pus, occurring upon the surface of the body.
(n.) An incrustation on the interior of wine bottles, the result of the ripening of the wine; a deposit of tartar, etc. See Beeswing.
(n.) To cover with a crust; to cover or line with an incrustation; to incrust.
(v. i.) To gather or contract into a hard crust; to become incrusted.
Example Sentences:
(1) In certain cases the ulcerous crust is removed with chloramine.
(2) A rapid evolution of epithelialization was found in case of treated animals as distinguished from control sample, where the infected crust was far from being healed.
(3) Future ice loss and bending of the crust due to rising sea levels have the potential ultimately to raise levels of both earthquake and volcanic activity.
(4) A search for an intact blister is always warranted when erosions, oozing, or crusts are noted.
(5) In general, healthy panelists evaluated the cakes as sweeter, crust bitterness as greater, and overall eating quality as higher than the panel members with carbohydrate metabolic disorders.
(6) The tanks fell from 2,000ft on to the salt crust of the open desert and burst open as they struck the ground.
(7) A negative correlation between the number of mites and the presence and extensiveness of crusts was observed.
(8) The presence of subcorneal pustules in a solitary, indolent, crusted plaque, or in erythema annulare-like lesions with a trailing scale, is evidence of atypical psoriasis.
(9) Requirements for intranasal douching with saline have varied; however, we have had no problems with bothersome crusting following b.i.d.
(10) Disadvantages are a longer healing period and temporary crust formation as in conchotomy, the high technical effort and cost of the laser.
(11) Crusting was found around the lashes, and the lids developed loss of lashes and hair.
(12) Within three weeks after treatment was initiated, all animals were free of crusts.
(13) After the crust falls, carrying away some tattoo pigment on its deeper surface, a pale-pink scar forms, then gradually fades in several months.
(14) We report a case of nonvesicular hydroa vacciniforme in which only extensive crusting associated with hypertrophic scarring on sun-exposed skin was present.
(15) The absorption of mercury was investigated after three phase crusting by Grob on a second-degree scald burn of 10 to 15% of the body surface in rats.
(16) For oxalate stones a separation of the outer layer (crust) from the inner layer (core) marked the point of maximum load.
(17) The vesicles progress to pustules, then to crusts that eventually are lost.
(18) A case of localized CrS appearing as a yellowish and crusted plaque on the second right toe is reported in a woman with AIDS.
(19) All the patients were elderly women who developed chronic, extensive, pustular, crusted and occasionally eroded lesions of the scalp which produced scarring alopecia.
(20) For all their apparent beauty and fragility, just think of coral reefs as big lumps of rock with a living crust.