VERB (1)

1. swing from one hold to the next;
- Example: "the monkeys brachiate"


ADJECTIVE (2)

1. having widely spreading paired branches;
- Example: "maples are brachiate"

2. having arms or armlike appendages;

The Collaborative International Dictionary of English v.0.48:

Brachiate \Brach"i*ate\, a. [L. brachiatus (bracch-) with boughs
   or branches like arms, from brackium (bracch-) arm.] (Bot.)
   Having branches in pairs, decussated, all nearly horizontal,
   and each pair at right angles with the next, as in the maple
   and lilac.
   [1913 Webster]

WordNet (r) 3.0 (2006):

brachiate
    adj 1: having widely spreading paired branches; "maples are
           brachiate"
    2: having arms or armlike appendages
    v 1: swing from one hold to the next; "the monkeys brachiate"