See Also: quaternion(dictionary)
quaternion(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Solar(medicine)
solar(dictionary)
solar(dictionary)
solar wind(encyclopedia)
solar urticaria(medicine)
solar system(encyclopedia)

solar elastosis (medicine) and quaternion (iou)


solar elastosis (medicine)


solar elastosis
Elastosis seen histologically in the sun-exposed skin of the elderly or in those who have chronic actinic damage.


quaternion (iou)



quaternion noun. , pl. -os. LME.
[Late Latin quaternio(n-), from Latin quaterni: see QUATERNARY.]
A group of four persons or things; spec. a set of four poems. LME.
A quire of four sheets of paper folded in two. E17.
The number four; the number ten. Cf. quaternary number s.v. QUATERNARY adjective. M17-M18.
Math. A complex number of the form w+xi+yj+zk, where w, x, y, z are real numbers and i, j, k are imaginary units that satisfy certain conditions. M19.
Comb.: quaternion group Math. the group which is generated by multiplication of the unit quaternions, i, j, and k.
quaterni'onic adjective of or pertaining to quaternions L19.
quaternionist noun a student of quaternions L19.