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An instrument for registering the depth and rapidity of respiratory movements.

spi′ro·graph′ic adj.
spi′ro·graph′i·cal·ly adv.
spi·rog′ra·phy (spī-rŏg′rə-fē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈspaɪrəˌɡrɑːf; -ˌɡræf)
(Medicine) med an instrument for recording the movements of breathing
ˌspiroˈgraphic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spirograph - a measuring instrument for recording the depth and rapidity of breathing movements
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Here, young explorers can experience engineering through virtual reality, design a sandcastle using a spirograph and more.
Trendy timekeepers, so you know when it's time to eat Spirograph clock, PS49.99, Very.co.uk Geometric patterns for cool kitchens.
Just as Mercury precesses around the Sun, drawing out cosmic Spirograph stencil patterns, so too do the S stars spiral around Sgr A*.
Sharon McMillan of Dumfries, aged 51, said: "I absolutely loved Spirograph. I would sit for hours creating pictures from all the shapes and patterns you could draw with Spirograph.
Among the standouts were the denim nesting tables, adorned with wire patterns inspired by the spirograph, and Pasola's drawer made of thrift-shop denim ribbons.
Pulmonary function study was carried out on a computer Spirograph "SpiroLab III" (Italy) for the evaluation of the [FEV.sub.1], [FEV.sub.1]/FVC, and the parameters of inspiratory capacity (IC).
Frank Hornby's beloved Meccano is also among the designs, along with other classic products including the Merrythought bear; Spirograph; Stickle Bricks; W Britain toy figures; Space Hopper; Fuzzy-Felt and Hornby Dublo trains.
Much-loved figures and accessories, such as the Sindy doll and Spirograph, will feature on the designs, in a nostalgic nod to a golden age of toy manufacturing.
Resident Helen Averley, who was at the rally dressed as a "moody cow" with her husband who was dressed as an "unhappy bunny", said: "We are fed up that someone has just got their spirograph out and drawn a great big motorway-sized roundabout on what is our green lung, most of us don't have gardens around here and this is a valuable asset that we should be protecting for the future.