(mathematics) The dot product of one of the three vectors with the cross product of the other two.

(music) A stringed instrument of the viol family, a variant of the octobass distinguished by its extreme size -- at more than ten feet all, it must be performed by a person on a platform.

plural of triple star system

plural of triple contrabass viol

plural of triple witching hour

(geology) A convergence located along a divergent plate boundary dividing the Nubian, Somali, and Arabian plates.

(medicine, pathology) A type of breast cancer, affecting African women more than white women, in which the three normal receptors are absent.

plural of triple negative breast cancer

(medicine, virology, neologism) An epidemic convergence of three illnesses: COVID-19, influenza, and RSV.