incurvate (Adjective) — Bent into or having an inward curve. ex. "Nearly all hairy chrysanthemums are of the Japanese incurvate type"
incurvate (Verb) — Bend inwards. ex. "The body incurvates a little at the back"
incurvate (Verb) — Cause to curve inward. ex. "gravity incurvates the rays"