0 past simple and past participle of straighten
2 to make something level:
3 to make something tidy:
Wild rivers were forced into straightened riverbeds, swamps were drained, and water levels were carefully monitored throughout the country.
The number of mermithid worms, if any, inside each amphipod was determined, and each worm was straightened without stretching and measured to the nearest mm.
Coming from the background of accounting, he immediately straightened out the company's bookkeeping and implemented a new accounting system.
They help him, get straightened out, put the pears back, in the basket, straighten out his bicycle, and so forth.
Hatching occurred when the parasitoid embryo straightened, causing the chorion to split.
Indeed, while the sisters watched, the image of her face returned gradually, and the nose straightened out, until it was returned to its original state.
The connective tissues surrounding oviducts were trimmed with scissors and the oviducts were straightened, then opened longitudinally using the scissors.
The coil was straightened by inserting a mandril, with loops then being formed by withdrawal of the mandril.
