Collimation

• POS: Noun
• HYPHEN: col=li=ma=tion

CIDE DICTIONARY

Collimation, n. [Cf. F. collimation, fr. a false reading (collimare) for L. collineare to direct in a straight line; col- + linea line. Cf. Collineation.].

 The act of collimating; the adjustment of the line of the sights, as the axial line of the telescope of an instrument, into its proper position relative to the other parts of the instrument.  [1913 Webster]

Error of collimation, the deviation of the line collimation of an astronomical instrument from the position it ought to have with respect to the axis of motion of the instrument. -- Line of collimation, the axial line of the telescope of an astronomical or geodetic instrument, or the line which passes through the optical center of the object glass and the intersection of the cross wires at its focus.

ROGET THESAURUS

Collimation

Direction

N direction, management, managery, government, gubernation, conduct, legislation, regulation, guidance, bossism, legislature, steerage, pilotage, reins, reins of government, helm, rudder, needle, compass, guiding star, load star, lode star, pole star, cynosure, supervision, superintendence, surveillance, oversight, eye of the master, control, charge, board of control, command, premiership, senatorship, director, chair, portfolio, statesmanship, statecraft, kingcraft, queencraft, ministry, ministration, administration, stewardship, proctorship, agency, director, directing, hegemonic, at the helm, at the head of, direction, bearing, course, vector, set, drift, tenor, tendency, incidence, bending, trending, dip, tack, aim, collimation, steering steerage, point of the compass, cardinal points, North East, South, West, N by E, ENE, NE by N, NE, rhumb, azimuth, line of collimation, line, path, road, range, quarter, line of march, alignment, allignment, air line, beeline, straight shoot, directed, directed towards, pointing towards, bound for, aligned, with alligned with, direct, straight, undeviating, unswerving, straightforward, North, Northern, Northerly, towards, on the road, on the high road to, en avant, versus, to, hither, thither, whither, directly, straight as an arrow, forwards as an arrow, point blank, in a bee line to, in a direct line to, as the crow flies, in a straight line to, in a bee line for, in a direct line for, in a straight line for, in a bee line with, in a direct line with, in a straight line with, in a line with, full tilt at, as the crow flies, before the wind, near the wind, close to the wind, against the wind, windwards, in the wind's eye, through, via, by way of, in all directions, in all manner of ways, quaquaversum, from the four winds, the shortest distance between two points is a stra.