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==Definition==

==Definition==

:c. With reference to problems and advice relating to [[education]], marriage, careers, etc.  

:c. With reference to problems and advice relating to [[education]], marriage, careers, etc.  

*2. quasi-concr. Something which guides or leads.

*2. quasi-concr. Something which guides or leads.

==Etymology==

==Etymology==

* '''''Guide''''' '''⥤''' F. '''''guide'''''-r (recorded from 14th c.), an altered form (influenced by Pr. guidar or It. guidare) of the older guier, whence '''''Guy''''' '''⥤''' OF. guie-r (superseded in later Fr. by guider: see GUIDE) = Pr., Sp., It. guiar, It. guidare; prob. of Teut. [[origin]], from some form of the [[radical|root]] of Goth. and OE. ''witan'' to know (e.g. WIT v.); cf. Goth. fairweitjan to spy. '''⥤''' '''''WIT'''''- Goth. witan, wait, waist, witum, wissa: f. OTeut. wait-, wt-:Indo-Eur. woid-, weid-, wid- to see (? orig. to find), also found in OE. adj. wis (see WIS n.), WISE n.1, WISE a., WITE.'''⥤''' '''''WISE''''' n.1 - OE. wíse wk. fem. (rarely wís str. fem.) manner, mode, condition, thing, affair, cause, reason, (occas.) song = OFris. wîs, OS. wîsa wk. and str. (MLG. wîse, wîs, MDu. wîze, wijs, Du. wijze), OHG. wîsa, and wîs manner, custom, tune (MHG. wîse, G. weise), ON. vísa wk. fem. stanza, *vís manner in öruvís otherwise (Sw. visa, Da. vise song; also Sw., Da. vis way, manner):OTeut. *wsn-, *ws: f. wit- WIT v.1 (for the sense cf. the cognate Gr.  form, shape, kind, [[state]] of [[things]], course of [[action]]).

* '''''Guide''''' '''⥤''' F. '''''guide'''''-r (recorded from 14th c.), an altered form (influenced by Pr. guidar or It. guidare) of the older guier, whence '''''Guy''''' '''⥤''' OF. guie-r (superseded in later Fr. by guider: see GUIDE) = Pr., Sp., It. guiar, It. guidare; prob. of Teut. [[origin]], from some form of the [[radical|root]] of Goth. and OE. ''witan'' to know (e.g. WIT v.); cf. Goth. fairweitjan to [[spy]]. '''⥤''' '''''WIT'''''- Goth. witan, wait, waist, witum, wissa: f. OTeut. wait-, wt-:Indo-Eur. woid-, weid-, wid- to see (? [[origin]] to find), also found in OE. adj. wis (see WIS n.), WISE n.1, WISE a., WITE.'''⥤''' '''''WISE''''' n.1 - OE. wíse wk. fem. (rarely wís str. fem.) [[manner]], mode, condition, [[thing]], affair, [[cause]], [[reason]], (occas.) song = OFris. wîs, OS. wîsa wk. and str. (MLG. wîse, wîs, MDu. wîze, wijs, Du. wijze), OHG. wîsa, and wîs manner, [[custom]], tune (MHG. wîse, G. weise), ON. vísa wk. fem. stanza, *vís manner in öruvís otherwise (Sw. visa, Da. vise song; also Sw., Da. vis way, manner):OTeut. *wsn-, *ws: f. wit- WIT v.1 (for the sense cf. the cognate Gr.  form, shape, kind, [[state]] of [[things]], course of [[action]]).

==Chronologic Sample==

==Chronologic Sample==

*1860 TYNDALL Glac. I. xi. 74 We trusted to our own muscles to make good any mistake in the way of guidance. *1870 BRYANT Iliad I. VI. 199 At Lycia he arrived Under the favoring guidance of the gods.  

*1860 TYNDALL Glac. I. xi. 74 We trusted to our own muscles to make good any mistake in the way of guidance. *1870 BRYANT Iliad I. VI. 199 At Lycia he arrived Under the favoring guidance of the gods.  

==Description==

==Description==

A '''guidance''' system is a device or [[group]] of devices used to navigate a ship, aircraft, missile, rocket, satellite, or other craft. Typically, this refers to a [[system]] that navigates without direct or continuous [[human]] control. Systems that are intended to have a high degree of human interaction are usually referred to as a '''''[[navigation]]''''' system.[http://en.wikipedia.org/wiki/Guidance_system]

A '''guidance''' system is a device or [[group]] of devices used to navigate a ship, aircraft, missile, rocket, satellite, or other craft. Typically, this refers to a [[system]] that navigates without direct or continuous [[human]] control. Systems that are intended to have a high degree of human interaction are usually referred to as a '''''[[navigation]]''''' system.[https://en.wikipedia.org/wiki/Guidance_system]

[[Category: Astronomy]]

[[Category: Astronomy]]

[[Category: Mathematics]]

[[Category: Mathematics]]