unicuspid


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unicuspid

[¦yü·nə′kəs·pəd]
(anatomy)
Having one cusp, as certain teeth.
References in periodicals archive ?
Unicuspid aortic valve in adults: a systematic review.
hirtosa left distinct grazing strokes upon the artificial wax substrate; these strokes generally matched the broad unicuspid shape of the teeth (Figs.
Phrynosomatids (excluding Phrynosoma) differ in having at least some tricuspate teeth and anterior unicuspid teeth are usually more pointed than those of Eumeces.
merriami (presence of a post-mandibular foramen, absence of a medial tine on I1, third unicuspid not smaller than fourth, relatively broad palate).
Premaxilla and dentary with many irregularly distributed unicuspid, slightly curved teeth of different sizes and small number of larger teeth in outer row of upper and lower jaws.
We did not remove the skull but the diagnostic dental features were easily visible when the lips were parted; the third unicuspid was larger than the fourth and the median surfaces of unicuspid teeth were pigmented.
Subdistal segments of posterior branch of ray 4 bearing thorn-like spines; two halves of posterior branch separated; 13-16 large unicuspid retrorse serrae on right half of ray 4, diminishing in size anteriorly; 9 or 10 serrae on left half of ray 4, smaller anteriorly and a few bicuspid (two-horned processes) proximally.
As in many Haplochromis species, posteriormost tooth in upper jaw unicuspid.
Jaws equal, mouth terminal; posterior terminus of maxilla reaching vertical through anterior third of orbit; premaxillary teeth in two rows; outer row with 2 (3), relatively compressed, unicuspid teeth; inner row with 5 (1), 6 (1), or 7(1) relatively bulky, tricuspid teeth; maxilla with 3 (1) or 4(3) tri- to unicuspid teeth; anteriormost tooth being the largest; dentary with 7 (1), 11 (1), 13(1), 14 (1) teeth; 4 anteriormost teeth larger, bulky, tricuspid, posterior ones unicuspid (Fig.