If two noun groups referring to the same person or thing are inapposition, one is placed immediately after the other, with no conjunction joining them, as in 'Her father, Nigel, left home three months ago.'
apposition in British English
(ˌæpəˈzɪʃən)
noun
1.
a putting into juxtaposition
2.
a grammatical construction in which a word, esp a noun phrase, is placed after another to modify its meaning
3. biology
growth in the thickness of a cell wall by the deposition of successive layers of material
Compare intussusception (sense 2)
Derived forms
appositional (ˌappoˈsitional)
adjective
apposition in American English
(ˌæpəˈzɪʃən)
noun
1.
an apposing or being apposed; putting side by side
2.
the position resulting from this
3. Grammar
a.
the placing of a word or expression beside another so that the second explains and has the same grammatical construction as the first
b.
the relationship between such terms (Ex.: my cousin is in apposition with Mary in “Mary, my cousin, is here”)
Derived forms
appositional (ˌappoˈsitional)
adjective
appositionally (ˌappoˈsitionally)
adverb
Word origin
L appositio, a setting before < appositus: see appose