[1] : The Collaborative International Dictionary of English v.0.48

ibidem \ibi"dem\, adv. l.
   in the same place; -- abbreviated ibid. or ib.
   1913 webster

[2] : WordNet (r) 2.0

ibidem
     adv : in the same place used when citing a reference syn: ibid.,
            ib.
see also:
ibid. ib. 

[3] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

ibidem. this word is used in references, when it is intended to say that a 
thing is to be found in the same place, or that the reference has for its 
object the same thing, case, or other matter. iou, contracts. the memorandum 
iou, i owe you, given by merchants to each other, is a mere evidence of 
the debt, and does not amount to a promissory note. esp. cas. n. a. 426; 4 
carr.  payne, 324; 19 eng. com. l. rep. 405; 1 man.  gran. 46; 39 e. c. l. 
r. 346; 1 campb. 499; 1 esp. r. 426; 1 man. gr.  so. 543; dowl.  r. n. p. 
cas. 8. 

Ibidem >> I Words
Ibidem, definition of term: Ibidem
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