Polemonium vanbruntiae, a species of flowering plant.

plural of Jacobs bogie

(rail transport) A design of bogie used for articulated passenger trains and trams, where the ends of two cars are mounted on the same bogie.

(organic chemistry) An organic synthesis for the preparation of quinolines.

plural of Gould-Jacobs reaction

Used to specify certain mathematical objects named in honour of C. G. J. Jacobi.

(calculus) A Jacobian matrix or its associated operator. / (calculus) The determinant of such a matrix.

Of or relating to the biblical Jacob.

(dated) A Dominican friar. / A member of a radical French political club founded (at an old Jacobin convent) in 1789 and one of the driving forces of the French Revolution.

Of, or related to the radical French political club that was a driving force of the French Revolution. / (by extension) Politically radical.