| echinoderm |
Echinoderms (Echinodermata) is a phylum of marine animals found in the ocean at all depths. This phylum dates back to the lower Cambrian period and represents about 7000 living species and 13000 extinct ones. 6 classes made it to the Modern Era: * Asteroidea (asteroids / starfishes or sea stars): 1,500 species that capture prey for their own food.* Concentricycloidea (sea daisies), have a unique water vascular system. ...
출처: en.wikipedia.org/wiki/Echinoderm
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| echo sign |
1. a percussion sound resembling an echo which is heard over a hydatid cyst. 2. the repetition of the last word or clause of a sentence, seen in certain brain diseases; echolalia.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| echo |
In radar, a general term for the appearance, on a radar display, of the radio signal scattered or reflected from a target. The characteristics of a radar echo are determined by 1) the waveform, frequency, and power of the incident wave; 2) the range and velocity of the target with respect to the radar; and 3) the size, shape, and composition of the target. See also target signal, blip.
출처: amsglossary.allenpress.com/glossary/browse
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| echocardiogram |
The image produced by performing an ultrasound examination of the heart.
출처: www.peteducation.com/dict_alpha_listing.cfm
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| echinulate |
bearing small, pointed spines.
출처: www.anbg.gov.au/glossary/webpubl/fungloss.htm
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