perforation number
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perforation gauge — noun : a calibrated strip of cardboard, celluloid, or metal for determining the perforation number of a stamp * * * Philately. a marked ruler used to measure the number of perforations per unit length along the borders of a stamp. [1890 95] … Useful english dictionary
perforation gauge — Philately. a marked ruler used to measure the number of perforations per unit length along the borders of a stamp. [1890 95] * * * … Universalium
perforation gauge — noun A device for measuring the number of perforations per 2 centimetre distance along the edge of a postage stamp … Wiktionary
perforation — /pɜfəˈreɪʃən/ (say perfuh rayshuhn) noun 1. a hole, or one of a number of holes, bored or punched through something, as those between individual postage stamps of a sheet to facilitate separation. 2. a hole made or passing through a thing. 3. the …
Hot needle perforation — or hot pin perforation refers to the placement of holes or apatures in a material using a hot or heated needle or pin. Packaging films are often microperforated in order for the packaged contents to breathe. Other applications include medical to… … Wikipedia
printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… … Universalium
List of oil field acronyms — Contents 1 # 2 A 3 B 4 C … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Appendicitis — Classification and external resources An acutely inflamed and enlarged appendix, sliced lengthwise. ICD 10 K … Wikipedia
Postage stamp separation — For postage stamps, separation is the means by which individual stamps are made easily detachable from each other. Methods of separation include: # perforation cutting rows and columns of small holes # rouletting small horizontal and vertical… … Wikipedia
