American Heritage Dictionary
(3)
Century Dictionary
(3)
GNU Webster's 1913
(1)
WordNet
(6)
Elsewhere on the web
The endless fall was then attached to this bag so that it could travel with its block backwards and forwards on the thick cable The first who passed from the wreck to the shore by means of this contrivance was a stout seaman with two very small children in charge.— Under the Waves Diving in Deep Waters
Material contact having proved unworkable the ideal weightless and frictionless linking was obtained by introducing a new magnetic contrivance, and this with the surprising potency of magnification from 5 to 100 million times.— Sir Jagadis Chunder Bose His Life and Speeches
By means of this contrivance, which is just a gigantic floating crane, the ponderous lower-masts of large ships are raised and lowered into their places When these are fixed, the rigging of the ship commences.— Man on the Ocean A Book about Boats and Ships
This contrivance is simply a stool with one leg.— The Lifeboat
Every one knew how laborious the usual method is of attaining to arts and sciences; whereas by his contrivance, the most ignorant person, at a reasonable charge, and with a little bodily labor, may write books in philosophy, poetry, politics, law, mathematics, and theology, without the least assistance from genius or study.— The Best of the World's Classics, Restricted to prose. Volume III (of X) - Great Britain and Ireland I

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word a few times a month.