Result from Foreign Dictionaries (2 entries found)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Quaternate \Qua*ter"nate\, a.
Composed of, or arranged in, sets of four; quaternary; as,
quaternate leaves.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
quaternate
adj 1: consisting of or especially arranged in sets of four;
"quaternate leaves"; "a quaternary compound" [syn:
{quaternate}, {quaternary}]