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A conic section.

[New Latin cōnicus, from Greek kōnikos, from kōnos, cone; see kō- in Indo-European roots.]

co·nic′i·ty (kə-nĭs′ĭ-tē) 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.


(Mathematics) the state of being conical
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The conicity index (C index) was calculated to determine coronary risk and interpreted in accordance with the cutoff points proposed by Pitanga and Lessa (16).
Study of conicity index, body mass index and waist circumference as predictors of coronary artery disease.
Evaluation of waist circumference waist-to-hip ratio and the conicity index as screening tools for hight trunk fat mass as mensured by dual-energy X-ray absorptiometry in children aged 3-19 y.
Evaluation of waist circumference, waist-to-hip ratio, and the conicity index as screening tools for high trunk fat mass, as measured by dual-energy X-ray absorptiometry, in children aged 3-19 y.
The effect rules of wheel tread concave wear on wheel diameter difference was researched by Sawley and Wu (2005), put forward that the wheel tread concave wear changed the conicity of wheel tread.
The conicity index (C index) was calculated using Valdez' formula, (19) and by calculating the median, it was considered 1.28 as the best cutoff value for men and 1.32 for women, because virtually all patients would be above the cutoff value suggested in literature, which would make the statistical analysis difficult.
Moreover, since during the tests on roller-rig the wheelset is centred, the lateral creepage vanishes ([[eta].sub.RL] = 0), while a constant value of the spin creepage must be considered, due to the wheel conicity.
report on the distribution of iris conicity using Scheimpflug imaging in a population-based study, part of the outcomes from the Gutenberg Health Study, and test whether pseudophakia allows the iris to sink back.
The conicity index was determined by measures of weight, height, and waist circumference using the following mathematical equation:
(6,7,8,9,10,11,12,13,14,15) NiTi instruments have been developed with various geometric conformations, (8) with the most significant design difference being the taper with conicity ranging from 2% to 12%, compared to the standard 2% taper of stainless steel instruments established by ANSI/ADA in 1976 and updated in 1982.
Future studies should not only investigate the use of BRI but also consider other proxy indicators such Anthropometric Risk Index (ARI) [167] and Conicity Index (CI) [168], while implementing Z-score to adjust for age and gender variation in larger and more diverse populations.