from The Century Dictionary.
- noun A furrow, channel, or sulcus; also, a set of sulci collectively.
- noun The state of being sulcated; also, the act, manner, or mode of grooving.
from the GNU version of the Collaborative International Dictionary of English.
- noun A channel or furrow.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
Sorry, no etymologies found.
Head oblong, narrowed behind, posteriorly deeply emarginate; the mandibles rufo-piceous, brightest at their apex, which is armed with two long teeth which are bent abruptly inwards, their tips black; the anterior portion of the head striated obliquely from the centre; the head, behind the anterior sulcation, very smooth and shining and having a deep longitudinal central depression.
Ferruginous; the flagellum and legs palest; head much narrowed behind, the posterior margin deeply emarginate; mandibles smooth and shining, their inner margin strongly serrated, their apex abruptly bent or elbowed, and armed with two stout teeth; the face anteriorly evenly striated obliquely; the head behind the anterior sulcation very delicately striated obliquely.
The sulcation on the back also leaves the median space wider than in Qiioy and Gaimard's species, and the reflexed lips of the aperture are different from any described species.