| crossed pyramidal tract | Those fibres of the pyramidal tract that cross to the opposite side in the pyramidal decussation and descend in the dorsal half of the lateral funiculus of the spinal cord; they are distributed throughout the length of the spinal cord to interneurons of the zona intermedia of the spinal gray matter. See: pyramidal tract. Synonym: tractus corticospinalis lateralis, tractus pyramidalis lateralis, crossed pyramidal tract, fasciculus corticospinalis lateralis, fasciculus pyramidalis lateralis, lateral corticospinal tract, lateral pyramidal fasciculus. (05 Mar 2000) |
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| crossed reflex | A reflex movement on one side of the body in response to a stimulus applied to the opposite side. Synonym: crossed jerk. (05 Mar 2000) |
| crossed reflex of pelvis | Contraction of the contralateral adductors of the thigh upon tapping the anterior superior iliac spine. Synonym: crossed spino-adductor reflex. (05 Mar 2000) |
| crossed renal ectopia | <radiology> M more than F, right (67%), may fuse: crossed-fused renal ectopia (12 Dec 1998) |
| crossed spino-adductor reflex | Contraction of the contralateral adductors of the thigh upon tapping the anterior superior iliac spine. Synonym: crossed spino-adductor reflex. (05 Mar 2000) |
| crossed testicular ectopia | Testis that has crossed the midline to join its contralateral mate in the contralateral inguinal canal or hemiscrotum. (05 Mar 2000) |
| crossing over | <genetics, molecular biology> The breaking during meiosis of one maternal and one paternal chromosome, the reciprocal exchange of corresponding sections of DNA along pairs of homologous chromosomes by symmetrical breakage and crosswise rejoining of the chromosomes. This results in the transfer of a block of genes from each chromosome to its homologue. In contrast to genetic recombination, which is a phenotypic phenomenon, crossing-over is genotypic. Any even number of crossing-overs between two loci will cancel out phenotypically and no recombination will occur. Recombination can result from DNA exchange of alleles between between homologous chromatids in meiosis, giving rise to chiasmata. Compare: recombination. (10 Nov 1998) |
| crossover fixation | <molecular biology> The addition of extra copies of segments of DNA on the same strand by unequal crossing over during meiosis. An explanation for the existence of satellite DNA, which are highly-repeated, non-transcribed sequences of DNA with no clear function. An alternative explanation to saltatory replication. (03 Jul 1999) |
| crossover study | <statistics> A study that compares two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. Usually refers to a study in which the subject is switched from the experimental to the control procedure (or vice versa). In the case of two treatments, a and b, half the subjects are randomly allocated to receive these in the order a, b and half to receive them in the order b, a. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. With this type of study, every patient serves as his or her own control. (21 Jun 2000) |
| crossway | <physiology> The crossing of two nerve paths. (05 Mar 2000) |
| Crosti, A | <person> 20th century Italian dermatologist. See: Gianotti-Crosti syndrome. (05 Mar 2000) |
| crotalaria poisoning | Poisoning of humans and animals with alkaloids of the plants Senecio (ragwort), Crotalaria (rattlebox), and Heliotropum; produces a veno-occlusive disease of the liver similar to Chiari's disease. Synonym: crotalism. (05 Mar 2000) |
| crotalase | <enzyme> Serine protease from venom of eastern diamondback rattlesnake, crotalus adamanteus Registry number: EC 3.4.21.30 (26 Jun 1999) |
| crotalid | <herpetology> Any member of the snake family Crotalidae. (05 Mar 2000) |
| crotalid venom | <herpetology> Venoms from snakes of the subfamily crotalinae or pit vipers, found mostly in the americas. They include the rattlesnake, cottonmouth, fer-de-lance, bushmaster, and american copperhead. Their venoms contain nontoxic proteins, cardio-, haemo-, cyto-, and neurotoxins, and many enzymes, especially phospholipases a. Many of the toxins have been characterised. (12 Dec 1998) |
Synonyms : Crown Rump Length, Crown-Rump Lengths, Length, Crown-Rump, Lengths, Crown-Rump
Synonyms : Crown, Dental, Crowns, Dental, Dental Crown, Crown
Synonyms : Corvus, Jackdaws, Crow, Jackdaw, Raven
| Crotalidae |
New World vipers: pit vipers
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| Croton |
grown in many varieties for their brightly colored foliage; widely cultivated as a houseplant tropical Asiatic shrub; source of croton oil
출처: wordnet.princeton.edu/perl/webwn
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| Croton bug |
German cockroach: small light-brown cockroach brought to United States from Europe; a common household pest
출처: wordnet.princeton.edu/perl/webwn
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| crown glass |
a glass blown into a globe which is later flattened and spun to form a disk optical crown: optical glass of low dispersion and low refractive index
출처: wordnet.princeton.edu/perl/webwn
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| crown saw |
a saw having teeth around the edge of a hollow cylinder
출처: wordnet.princeton.edu/perl/webwn
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| CRO | a close friend who accompanies his buddies in their activities |
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| CRO | favoritism shown to friends and associates (as by appointing them to positions without regard for their qualifications) |
| CRO | monkey of southeast Asia, Borneo and the Philippines |
| CRO | a long staff with one end being hook shaped |
| CRO | someone who has committed (or been legally convicted of) a crime |
| CRO | a circular segment of a curve |
| CRO | bend or cause to bend |
| CRO | a person whose back is hunched because of abnormal curvature of the upper spine |
| CRO | characteristic of or suffering from kyphosis, an abnormality of the vertebral column |
| CRO | characteristic of or suffering from kyphosis, an abnormality of the vertebral column |
| CRO | having the back and shoulders rounded |
| CRO | irregular in shape or outline |