# subtendent
## English
### Pronunciation

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### Etymology 1

From subtend +‎ -ent.

#### Noun

subtendent (plural subtendents)
* (geometry, trigonometry) The side that subtends (is opposite) a specified angle;
** 1642, Bartholomäus Pitiscus, Trigonometry: Or, The Doctrine of Triangles., page 91:Lastly, if you put BC the lesser of the sides, including the right angle for Radius, the greater side, AC, including the right angle is the tangent of ABC, the greater acute angle opposite; and the subtendent A B, is the secant of the same acute angle.
** 1657, Johannes Jonstonus, An History of the Constancy of Nature:The very Subtendent line is found of an odde part; but the very subtendent of an even part is not found at one operation, but onely the Square of the Subtendent; and the greater the number of parts be, so much harder it willbe to finde out the subtendent.
** 1834, Thomas Urquhart, Lord Thomas Maitland Dundrennan, The Works of Sir Thomas Urquhart of Cromarty, Knight, page 81:The first figure, Vale, hath but one mood, and therefore of as great extent as it selfe, which is Upalem; whose nature is to let us know, whan a plane right angled triangle is given us to resolve, whose subtendent and one of the obliques is proposed, and one of the ambients required, that we must have recourse unto its resolver, which being Rad_U_Sapy→Yr sheweth, that if we joyne the artificiall sine of the angle opposite to the die demanded with the Logarithm of the subtendent, the summe searched in the canon of absolute numbers will afford us the Logarithm of the side required.
** 1994, Alistair Cameron Crombie, Styles of Scientific Thinking in the European Tradition, page 840:For example, even if there were no possible quantity, mathematicians could say that if it was possible to make a right angled triangle, it was something assured that the hypotenuse or the subtendent of the right angle would make a square equal to the squares of the other two sides

#### Adjective

subtendent (comparative more subtendent, superlative most subtendent)
* (geometry) That subtends; that lies opposite to a specified angle or point.
** 1875, Lieutenant-Colonel J.F. Tennant, “Report on Observations of the Total Elipse of the Sun”, in Memoirs of the Royal Astronomical Society, volume 42, page 9:Captain Herschel expresses doubts of this, but it is evident that as the cusps closed both must have been within the space subtendent by half the length of the slit.
** 1957, Giambattista della Porta, Natural Magick, page 359:Make subtendent lines to them, and cut away the arches; then erect plain Looking-glasses, that may be of the same latitude, and of the same parallel lines, and the same longitude; glew them fast together, and fit them lo, that they may not be pulled asunder, as they are joyned long-ways, and erected upon a plain superficies.
** 1988, British Phycological Journal, page 53:An outermost, “ballooning” membrane was seen to form dilated vesicles above the subtendent “armour” layer.

### Etymology 2

From sub- +‎ tend +‎ -ent.

#### Adjective

subtendent (comparative more subtendent, superlative most subtendent)
* That arises from; consequent.
** 1882, James McCann, The Champion of the faith against current infidelity, page 191:Secularism, with its subtendent isms, may now be considered to have approached the critical or turning' point in its career.
** 1893, Donahoe's Magazine - Volume 29, page 138:Yet it must not be supposed that while this painter sturdily refuses to prettify or to humanize, to adopt or to invent a school, there is any hardness or lack of subtendent poetry in his art.
** 1948, New York State Journal of Medicine, page 2398:Healing of these badly damaged kidneys brings about stricturization of collecting renal tubules within the parenchyma itself, which interferes with free urinary drainage and healing of the subtendent lesions.
** 2010 Fall, Sheila Liming, “Of Anarchy and Amateurism: Zine Publication and Print Dissent”, in The Journal of the Midwest Modern Language Association, volume 43, number 2, page 140:In spite, though, of the logic of the 'network,' the subtendent rationalization for the structure of the Internet, blogs hail the effective reverse of this model: blogs are, in the words of Stodge.org blogger Randi Mooney, chiefly 'a form of vanity publishing ... the truth is that blogs consist of senseless teenage waffle.