pinhole


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Related to pinhole: pinhole test, Pinhole Photography

pinhole

(pĭn′hōl) [AS. pinn, pin, + hol, hole]
A small perforation made by, or the size of that made by, a pin.

pinhole os

A very small opening to the uterus from the vagina. It may be present in very young women.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
I've noticed that cheap hoses usually crack, and that better-quality hoses eventually spring pinholes. Those good hoses are worth repairing!
The distribution at the filter pinhole plane is given by
If you mask down the mirror to half an inch or so, it'll act like a pinhole and create a fairly good image.
The aim of this study was to compare two protocols for parathyroid scintigraphy in the same patients with primary or secondary hyperparathyroidism: [sup.99m]Tc-sestamibi/[sup.123]I-subtraction SPECT/CT alone or combined with additional pinhole imaging.
We begin with an argument to support the use of pinhole photography as a method for facilitating the collection of participant-generated research data and a tool that lends itself to a "slow pedagogy of place" (Payne & Wattchow, 2008, 2009).
You can make a pinhole camera at home using common household items and it will also enable a group of people to view the eclipse as it is happening.To make a basic pinhole projectorYou will need: Two sheets of plain white paper - the kinds you use for printing are perfect.
Low Voltage Pinhole Detector-Advanced (LD8105) comes in a hardboard box with the following items: Low Voltage Pinhole Detector, Sponge Wand, grounding cable with clamp and user manual.
If a laminate is overstretched during deep drawing--regardless of whether it is a thermoform or coldform laminate--tears or pinholes could occur that critically diminish or even entirely eliminate protection.
The authors are the editors of Pinhole Journal, a contemporary magazine of pinhole photography, and have therefore been important in the recent revival of the technique.
During this patient's hospitalizations, her acuity assessments were always conducted while she was wearing her glasses, but neither a pinhole test nor formal refraction by an eye care specialist had been conducted.
The common solution is to use a barrier bag, such as an aluminium foil based laminate with a one-way degassing valve or pinhole barrier.