Adjunction

Adjunction is a one of the two types of movement operation, the other being substitution. Traditionally, there are two types of adjunction: Chomsky-adjunction, which results in a structure like (i), and sister-adjunction, which results in a structure like (ii). Both structures are the result of adjunction of X to Yi+1, but only in (i) the node adjoined to is doubled, or split into two segments to accommodate the adjoined element.

(i)	 Yi+1	       (ii)	 Yi+1 / \                   / | \ 	X   Yi+1              X  Z  Yi+1 / \ 	   Z	Yi

Under the assumption of the binary branching constraint which rules out structures like (ii), sister-adjunction is not possible.

Link
Utrecht Lexicon of Linguistics

Other languages

 * German Adjunktion
 * Russian адъюнкция

Cateory:En