ovalize
/ˈəʊvəlʌɪz/ /ˈəʊv(ə)lʌɪz/(also ovalise)
verb
[with object] To make oval in shape; specifically to make the metal tubes of the frame of a bicycle oval in cross-section for extra rigidity. Also without object: to become oval in shape.
Origin
Early 20th century. From oval + -ize. Compare French ovaliser.