1) Bone of the vertebral column 2) Luxation 3) Medical terminology 4) Sprain 
A subluxation may have different meanings, depending on the medical specialty involved. It implies the presence of an incomplete or partial dislocation of a joint or organ.{efn| 1 = Definition: subluxation n : partial displacement of a joint or organ}} The World Health Organization (WHO) defines both the medical subluxation and the chiropractic su...
partial dislocation of a joint where part of the joint surface still remains in contact
state of being almost dislocated
• (n.) An incomplete or partial dislocation.
A slight dislocation or misalignment of a bone in a joint.
Partial dislocation of a joint. The term usually implies that the joint can return to its normal position without formal reduction.
The abnormal movement of one of the bones that comprise a joint. Not a true dislocation. A partial dislocation. An example of this would be radial head subluxation in the elbow (nursemaids elbow). Severe arthritis with advanced deformation of the joint space can result in subluxation. ... (27 Sep 1997) ... 
(sub″lәk-sa´shәn) incomplete or partial dislocation.
Partial dislocation of a joint
Sub`lux·a'tion noun [ Prefix sub + luxation : confer French subluxation .] (Surg.) An incomplete or partial dislocation. 
Partial dislocation of a joint, so that the bone ends are mis-aligned but still in contact.
Type: Term Pronunciation: sŭb′lŭk-sā′shŭn Definitions: 1. An incomplete luxation or dislocation; although a relationship is altered, contact between joint surfaces remains. Synonyms: semiluxation
Subluxation: Partial dislocation of a joint. A complete dislocation is a luxation.Common Misspellings: sublaxation
Partial or incomplete dislocation or strain of a joint.
Describes the situation when the two articulating bones forming a joint move beyond their normal range. Further displacement may lead to dislocation. This can also be applied to tendons starting to displace beyond their normal 'line of pull'
Partial dislocation of a joint; also, a slight alteration in the position of the lens of the eye.
[n] - partial displacement of a joint or organ
noun partial displacement of a joint or organ
An incomplete or partial dislocation
a partial dislocation, as of a joint; sprain.
A partial or incomplete dislocation.