Je was op zoek naar: spherically curved and aspherically curved (Engels - Spaans)

gram negative anaerobic straight, curved, and helical rods
bacilos anaerobios gramnegativos, rectos, curvos y helicoidales

the embryo can be straight or curved, and has two cotyledons.
el embrión, que puede ser recto a curvo, presenta dos cotiledones.

subclass anaerobic gram-negative, straight curved and helical rods
bacilos anaerobios gramnegativos, rectos, curvos y helicoidales

the leaves are long, slightly curved and bear many long, wide leaflets.
las hojas son largas, ligeramente curvadas y cargan con muchas hojuelas largas y anchas.

cornicabra: also known as ergot, due to the curved and elongated.
cornicabra: conocida también como cornezuelo, debido a la forma curvada y alargada.

the spinal column becomes curved and compressed (packed together).
la columna vertebral se vuelve curva y comprimida (apretada).

the processing of the plan is "a goose beak", ie cut curved and rounded.
la tramitación del plan es "un pico de ganso", es decir, corte curvo y redondeado.