What does conic mean?
Conic means relating to or resembling a cone, whether in literal shape or in the abstract geometry derived from one. As an adjective, it most often appears in technical contexts — a 'conic section,' for instance, is the curve traced where a plane cuts through a cone, encompassing the circle, ellipse, parabola, and hyperbola. Mathematicians also treat 'conic' as a noun in its own right, using it as shorthand for any of these curves. The word carries a precise, scholarly register: while 'conical' serves everyday description of cone-shaped objects like funnels or volcanoes, 'conic' belongs to the vocabulary of analytic geometry, cartography (as in conic map projections), and physics. Rooted in the ancient Greek word for cone, it reflects a lineage of mathematical thought stretching back to Apollonius of Perga's classical study of these curves. For students of mathematics, 'conic' is an indispensable term that unifies several seemingly different curves under a single elegant geometric idea.
Of, relating to, or shaped like a cone.
"A conic roof capped the watchtower, shedding rain efficiently on all sides."
Most frequent in technical contexts such as 'conic section' and 'conic projection'; everyday descriptions usually prefer 'conical.'
A curve formed by the intersection of a plane with a right circular cone; a circle, ellipse, parabola, or hyperbola.
"The proof showed that every orbit can be described as a conic."
Used almost exclusively in mathematics, typically as shorthand for 'conic section.'
Applies only to the noun sense referring to conic-section curves; the adjective has no plural.
"Euclidean treatments of conics classify them by eccentricity."
Every circle, ellipse, parabola, and hyperbola you've ever drawn is secretly just a slice of a cone — that's why mathematicians call them all 'conics.'
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of conic
Conic derives from the ancient Greek 'konikos,' meaning 'of or pertaining to a cone,' itself built on 'kōnos' ('cone'), which passed into Latin as 'conus' before entering English. The term entered English usage in the early modern period alongside the revival of classical geometry, particularly through the study of conic sections codified by Apollonius of Perga. It shares its root with related words such as 'cone,' 'conical,' 'conoid,' and even 'conifer' (literally 'cone-bearing'). The noun sense, denoting a conic section curve, developed naturally out of this adjectival use among mathematicians.
Related word forms
How conic is actually used
'Conic' is primarily a technical term used in mathematics, geometry, astronomy, and engineering. In everyday descriptive use, 'conical' is far more common for describing cone shapes; 'conic' as an adjective tends to appear in fixed technical phrases such as 'conic section' or 'conic projection.' As a standalone noun, 'conic' is chiefly mathematical shorthand for 'conic section.'
Easily confused with conic
Despite the similar spelling and sound, 'chronic' means persisting for a long time (as in chronic pain), while 'conic' relates to the shape of a cone.
'Sonic' relates to sound or the speed of sound, whereas 'conic' describes something cone-shaped or connected to conic sections.