Sentence examples for longitudinal grooves from inspiring English sources

The grooved regions were designed either parallel (longitudinal grooves) or orthogonal (transverse grooves) to the exit flow direction.

The protective outer wings (elytra) on its abdomen have deep longitudinal grooves.

Fruit: generally 1, erect or pendent, narrow-fusiform to lance-ovoid, with fine longitudinal grooves [or smooth].

The floods cut through a loess cover into basalt and left a system of large dry channels with waterfalls, potholes, and longitudinal grooves in the basalt.

They are made from bar stock of hardened steel; two-thirds of the tool has cutting threads divided by longitudinal grooves or flutes.

Seed: generally 4, 2--3.5 mm; abaxial surface finely pitted; adaxial surface with central ridge separating 2 longitudinal grooves, ridge corrugated along 1 side.

All of the subspecies share a peculiar longitudinal groove or "channel" along the maxilla.

A longitudinal groove on the surface of the penis directs the flow of sperm.

In the lower layer, a longitudinal groove has been made that simulates an initial crack.

A longitudinal groove, the sulcus, extends from the annulus posteriorly to the point at which a second flagellum is attached.

The venomous lizards (Heloderma) have a longitudinal groove or fold on the inner side of each mandibular tooth; these grooves conduct the venom from the lizard to its victim.