What does a Kelvin type connection mean?

Question

Hi all, 
 I am currently working with AD9273. In Page 22 of the datasheet, it says that " It is highly recommended that the LG-x pins form a Kelvin type connection to the input or probe connection ground. " 
 May I ask what does a Kelvin type connection means? I am only aware of a Kelvin connection when measuring resistance accurately by carefully calibrating out the effect of lead resistances, aka 4-wire measurement. I have no clue what a Kelvin connection means in this context. 
 Thanks, 
 YH

john-lazzaro · Accepted Answer

Figure 39 from the datasheet (above) shows the 
 concept -- note that the ground connection 
 of C_LG occurs at the shield of the transducer 
 cable, rather than being attached to a ground 
 point nearby the LG-x pin. The goal is for the 
 LG-x input to see the same ground value the 
 transducer sees.)

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What does a Kelvin type connection mean?