Dictionary > Perforations

Perforations

perforation
1. The act of boring or piercing through a part.
2. A hole made through a part or substance.
Origin: L. Perforare = to pierce through

Last updated on June 24th, 2021

You will also like...

New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

Chromosome Mutations – II

This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..

Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

Sigmund Freud and Carl Gustav Jung

In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..

Cell Structure

A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..

.heateorSssInstagramBackground{background:radial-gradient(circle at 30% 107%,#fdf497 0,#fdf497 5%,#fd5949 45%,#d6249f 60%,#285aeb 90%);}.heateor_sss_horizontal_sharing .heateorSssSharing,.heateor_sss_standard_follow_icons_container .heateorSssSharing{color:#fff;border-width:0px;border-style:solid;border-color:transparent;}.heateor_sss_horizontal_sharing .heateorSssTCBackground{color:#666;}.heateor_sss_horizontal_sharing .heateorSssSharing:hover,.heateor_sss_standard_follow_icons_container .heateorSssSharing:hover{border-color:transparent;}.heateor_sss_vertical_sharing .heateorSssSharing,.heateor_sss_floating_follow_icons_container .heateorSssSharing{color:#fff;border-width:0px;border-style:solid;border-color:transparent;}.heateor_sss_vertical_sharing .heateorSssTCBackground{color:#666;}.heateor_sss_vertical_sharing .heateorSssSharing:hover,.heateor_sss_floating_follow_icons_container .heateorSssSharing:hover{border-color:transparent;}@media screen and (max-width:783px){.heateor_sss_vertical_sharing{display:none !important;}}@media screen and (max-width:783px){.heateor_sss_floating_follow_icons_container{display:none !important;}}div#ez-toc-container p.ez-toc-title{font-size:120%;}div#ez-toc-container p.ez-toc-title{font-weight:500;}div#ez-toc-container ul li{font-size:95%;}div#ez-toc-container{background:#fff;border:1px solid #ddd;}div#ez-toc-container p.ez-toc-title{color:#999;}div#ez-toc-container ul.ez-toc-list a{color:#3a76c3;}div#ez-toc-container ul.ez-toc-list a:hover{color:#7cbb48;}div#ez-toc-container ul.ez-toc-list a:visited{color:#3a76c3;}.broken_link,a.broken_link{text-decoration:line-through;}.ai-viewports{--ai:1;}.ai-viewport-3{display:none !important;}.ai-viewport-2{display:none !important;}.ai-viewport-1{display:inherit !important;}.ai-viewport-0{display:none !important;}@media (min-width: 768px) and (max-width: 979px){.ai-viewport-1{display:none !important;}.ai-viewport-2{display:inherit !important;}}@media (max-width: 767px){.ai-viewport-1{display:none !important;}.ai-viewport-3{display:inherit !important;}}.related-bio-tutorials{display:none !important;}aside#related-posts-2,aside#related-posts-6,aside#ai_widget-2{display:none;}aside#related-tutorials-4,aside#related-tutorials-2,aside#ai_widget-2{display:none;}