1.0Glossaryhttps://www.healthbenefitstimes.com/glossaryGlossaryhttps://www.healthbenefitstimes.com/glossary/author/adminglossary/rich600338<blockquote class="wp-embedded-content" data-secret="0n5HSwuCKo"><a href="https://www.healthbenefitstimes.com/glossary/density/">Density</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.healthbenefitstimes.com/glossary/density/embed/#?secret=0n5HSwuCKo" width="600" height="338" title="“Density” — Glossary" data-secret="0n5HSwuCKo" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.healthbenefitstimes.com/glossary/wp-includes/js/wp-embed.min.js </script> The logarithm to the base 10 of the opacity of an exposed and processed film.The amount of hairs on your head. If you have loads of hair, your hair has heavy density; if you have less hair, your hair has light density.Degree of compactness or relative weight of a substance compared with a reference standard; in radiology, die ability of a material to absorb X rays. Materials that are radio- dense or radiopaque absorb much X ray, allowing very little to pass through to the film. They appear as white shadows on standard X-ray films. Radio- lucent materials have low X-ray density, permitting many X rays to pass and strike the film. They appear as darker shadows on standard films.The compactness of a substance, such as tissue. In radiology, density of tissue is determined by the amount of light or darkness seen in an area of a scan and is based on how dense the tissue is to radiation. Differences in tissue density are what allows CT (computed tomography) scans and MRI (magnetic resonance imaging) to create images of the body's organs and tissues.The relative weight of a substance compared with a reference standard.Density refers to the "compactness" of a substance, indicating its mass per unit volume. In radiology, density pertains to the amount of radiation absorbed by the structure under examination using X-rays. Bone exhibits a high absorption of radiation, appearing as white on X-ray film, whereas the lung, predominantly composed of air, absorbs minimal radiation and appears dark on the film. The same principle applies to CT scanning and MRI.