inertia

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inertia inertial guidance

Main Entry: in·er·tia
Pronunciation: i-'n&r-sh&, -shE-&
Function: noun
Etymology: New Latin, from Latin, lack of skill, from inert-, iners
1 a : a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force b : an analogous property of other physical quantities (as electricity)
2 : indisposition to motion, exertion, or change : INERTNESS
- in·er·tial /-sh&l/ adjective
- in·er·tial·ly /-'n&r-sh(&-)lE/ adverb