Wordnet 3.0
ADJECTIVE (1)
1.
anterior to a frontal structure;
- Example: "a prefrontal bone"- Example: "prefrontal lobes"
The Collaborative International Dictionary of English v.0.48:
Prefrontal \Pre*fron"tal\, a. (Anat. & Zool.)
Situated in front of the frontal bone, or the frontal region
of the skull; ectethmoid, as a certain bone in the nasal
capsule of many animals, and certain scales of reptiles and
fishes. -- n. A prefrontal bone or scale.
[1913 Webster]
WordNet (r) 3.0 (2006):
prefrontal
adj 1: anterior to a frontal structure; "a prefrontal bone";
"prefrontal lobes"