crest

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Related to iliac crest: inguinal ligament

crest,

in feudal livery, an ornament of the headpiece that afforded protection against a blow. The term is incorrectly used to mean family coat of arms. Crests were widely used in the 13th cent. by feudal chiefs, as they had been by ancient Greek warriors and the Roman centurions. The earlier forms were usually of stuffed leather, gilded, silvered, or painted; later they were of wood or metal. The crest came to be used in heraldryheraldry,
system in which inherited symbols, or devices, called charges are displayed on a shield, or escutcheon, for the purpose of identifying individuals or families.
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, first only by persons of high rank, then by all those entitled to a coat of arms. It surmounts the escutcheon; its colors are those of the coat of arms. The dragon, wivern, and plume of feathers are common crests. The lion, used by Edward III of England, remains the crest of the English sovereigns. See also blazonryblazonry
, science of describing or depicting armorial bearings. The introduction, since the Middle Ages, of artificial rules and fanciful medieval terms has complicated the science, particularly in England.
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Crest

Ornament on a roof, a roof screen or wall, which is frequently perforated, and consists of rhythmic and identical decorative patterns.

Crest

 

(1) A bony protrusion in vertebrates and man that increases the area for muscle attachment. For example, the skulls of many mammals have, on the occipital and parietal bones, crests whose size depends upon the degree of development of the attached musculature. The sternum of flying birds has a high thin crest called the carina, to which the pectoral muscles, which draw the wings downward, are attached.

(2) A fleshy growth (in English, also called the comb) at the top of the head in some birds (many gallinaceans and accipi-ters, such as the American black vulture). In breeds of domestic fowl the crest takes a variety of forms (foliate, rosaceous, or nutlike). Varieties of chicken with well-developed tufts usually have no comb (for example, the Dutch and Padua hens).

crest

[krest]
(design engineering)
The top of a screw thread.
(science and technology)
The highest point of a structure or natural formation, such as the top edge of a dam, the ridge of a roof, the highest point of a gravity wave, or the highest natural projection of a hill or mountain.

crest

crest, 2
1. A finial.
2. An ornament of a roof, a roof screen, wall, or aedicula, generally rhythmic and highly decorative, and frequently perforated; cresting.

crest

1. a tuft or growth of feathers, fur, or skin along the top of the heads of some birds, reptiles, and other animals
2. a ridge on the neck of a horse, dog, lion, etc.
3. the mane or hair growing from this ridge
4. a ridge along the surface of a bone
5. Archery identifying rings painted around an arrow shaft
References in periodicals archive ?
Soft tissue depression at the iliac crest prominence: a new landmark for identifying the L4-L5 interspace.
A randomized, double-blind, placebo-controlled study examining the effect of local anesthetic infiltration versus a saline placebo infiltration for the control of iliac crest donor site pain following a single-level ACF was conducted in the neuroscience surgical unit of a major Australian teaching hospital over an 18-month period.
Bone markers such as S-BGP, S-ALP, S-TRAP and IGF-1, iliac crest bone biopsy and histological measurements indicate high bone turnover in systemic mastocytosis.
Holtom, "Comparison of anterior and posterior iliac crest bone grafts in terms of harvest-site morbidity and functional outcomes," The Journal of Bone & Joint Surgery--American Volume, vol.
Montoro5 reported a 47-year-old male patient with an ameloblastoma in the posterior mandible who was treated with complete resection of a mandibular segment and reconstruction with iliac crest bone graft fixed with titanium plates and screws.
The safety and efficacy of OP-1 (rhBMP-7) as a replacement for iliac crest autograft in posterolateral lumbar arthrodesis: a long-term (> 4 years) pivotal study.
Painful myositis ossificans as a rare complication of the iliac crest bone graft donor site harvesting.
Bivariate correlation analysis between the anthropometric characteristics such as body mass, body height, body mass index, circumference and length of limbs, body fat, sum of skin-folds, selected skin-fold thicknesses at abdomen, iliac crest, front thigh and medial calf, and training characteristics such as its volume and intensity with race time were performed using Pearson correlation analysis.
A contrast-enhanced computed tomography (CT) scan performed at an outside facility showed a large mixed-density mass measuring roughly 10 20 cm extending from a right suprarenal location inferiorly below the iliac crest (Figure 1).
In the lower part of the lumbar spine the pattern is modified, as the fascicles insert into the sacrum and iliac crest, giving the impression that multifidus fans out in a tree-like fashion as it approaches the sacrum (Figure 3).
These include increased fusion success rates compared to cadaver graft, elimination of iliac crest harvest site morbidity and decreased surgical time and hospital stay.
Plain radiography showed calcifications along the right side of the iliac crest.