Definition: -oid

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Source: Webster's Revised Unabridged Dictionary (1913) 

-oid \-oid\ [Gr. ?, fr. ? form, akin to ? to see, and E. wit:
   cf.F. -o["i]de, L. -o["i]des.]
   A suffix or combining form meaning like, resembling, in the
   form of; as in anthropoid, asteroid, spheroid.

Source: The Free On-line Dictionary of Computing (2003-OCT-10) 

-oid

   <jargon> (from "android") A suffix used as in mainstream
   English to indicate a poor imitation, a counterfeit, or some
   otherwise slightly bogus resemblance.  Hackers will happily
   use it with all sorts of non-Greco/Latin stem words that
   wouldn't keep company with it in mainstream English.  For
   example, "He's a nerdoid" means that he superficially
   resembles a nerd but can't make the grade; a "modemoid" might
   be a 300-baud modem (Real Modems run at 144000 or up); a
   "computeroid" might be any bitty box.

   "-oid" can also mean "resembling an android", which was once
   confined to science-fiction fans and hackers.  It too has
   recently (in 1991) started to go mainstream (most notably in
   the term "trendoid" for victims of terminal hipness).  This is
   probably traceable to the popularisation of the term droid
   in "Star Wars" and its sequels.

   Coinages in both forms have been common in science fiction for
   at least fifty years, and hackers (who are often SF fans) have
   probably been making "-oid" jargon for almost that long
   (though GLS and ESR can personally confirm only that they
   were already common in the mid-1970s).

   [Jargon File]

   (1999-07-10)
OID

   object identifier

Source: V.E.R.A. -- Virtual Entity of Relevant Acronyms December 2001 

OID
        Object IDentifier (OSI)

Source: Jargon File (4.3.1, 29 Jun 2001) 

-oid suff. [from Greek suffix -oid = `in the image of'] 1. Used as in
   mainstream slang English to indicate a poor imitation, a counterfeit, or
   some otherwise slightly bogus resemblance. Hackers will happily use it
   with all sorts of non-Greco/Latin stem words that wouldn't keep company
   with it in mainstream English. For example, "He's a nerdoid" means that
   he superficially resembles a nerd but can't make the grade; a `modemoid'
   might be a 300-baud box (Real Modems run at 28.8 or up); a `computeroid'
   might be any bitty box. The word `keyboid' could be used to describe a
   chiclet keyboard, but would have to be written; spoken, it would
   confuse the listener as to the speaker's city of origin. 2. More
   specifically, an indicator for `resembling an android' which in the past
   has been confined to science-fiction fans and hackers. It too has
   recently (in 1991) started to go mainstream (most notably in the term
   `trendoid' for victims of terminal hipness). This is probably traceable
   to the popularization of the term droid in "Star Wars" and its
   sequels. (See also windoid.)

   Coinages in both forms have been common in science fiction for at
   least fifty years, and hackers (who are often SF fans) have probably
   been making `-oid' jargon for almost that long [though GLS and I can
   personally confirm only that they were already common in the mid-1970s
   --ESR].