| cluster headache |
Headache characterized by intense, burning pain in or around one eye and temple. That eye may redden and weep, and the nostril on that side may experience stuffiness and discharge. These types of headaches usually occur daily for a period of weeks to months in a cluster followed by a remission before the next cluster.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| cluster |
A cluster is a group of stars or galaxies. Our own galactic cluster, the Local Group, is about 5 million light-years across and contains about 30 galaxies (the largest of which are the Andromeda galaxy, Triangulum, and our Milky Way). The next-closest cluster is the Virgo Cluster, which is about 60 million light-years from Earth. CMB CMB stands for Cosmic Background Radiation and is also abbreviated CMBR and CBR. ...
출처: www.enchantedlearning.com/subjects/astronomy/gloss...
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| cluster analysis |
A technique for grouping similarities or differences between a set of objects or persons. Comparative advantage One country enjoying a lower production ratio (ie inputs to outputs) than another country.
출처: www.oup.com/uk/booksites/content/0199267529/studen...
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| cluster |
Large group of flowers or fruits on a plant. Some plants have many flowers growing close together in a cluster. Clusters may be long or ball-shaped. Later, fruits replace the flowers.
출처: www.fcps.k12.va.us/StratfordLandingES/Ecology/mpag...
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| cluster analysis |
A method grouping those variables within a set of variables that are highly correlated and excluding from clusters those that are negatively correlated or uncorrelated. Used in numerical taxonomy as a procedure for arranging taxonomic units into homogenous clusters based on their mutual similarities.
출처: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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