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"Section M, N, and O"

(b) Simple rotation, which may be either
continuous or reciprocating, and when reciprocating is called
oscillating. (c) Helical, which, if of
indefinite duration, must be reciprocating. Compound
motion
consists of combinations of any of the simple
motions.


Center of motion, Harmonic
motion
, etc. See under Center, Harmonic,
etc.
-- Motion block (Steam Engine),
a crosshead. -- Perpetual motion
(Mech.), an incessant motion conceived to be attainable by
a machine supplying its own motive forces independently of any action
from without.


Syn. -- See Movement.


Mo"tion, v. i. [imp. & p.
p.
Motioned (?); p. pr. & vb. n.
Motioning.] 1. To make a significant
movement or gesture, as with the hand; as, to motion to one to
take a seat.


2. To make proposal; to offer plans.
[Obs.] Shak.


Mo"tion, v. t. 1.
To direct or invite by a motion, as of the hand or head; as, to
motion one to a seat.


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