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Recurrent aphthous ulcers or canker sores in inner cheek of Southeast Asian elderly man. Oval shaped ulcers in oral cavity due to sharp tooth irritation. Closeup view.
Ultradian rhythm is a recurrent period or cycle repeated throughout a 24-hour day, text concept on card
Tomato flowers on blurred natural background. Spiral arrangement in nature. Illustration of Fibonacci sequence. Golden Ratio concept
road infinity 3D rendering
a businessman figure sitting on the books. Image of lifelong study, education.

Free stock photosrecurrence (65)

Geometric abstract of zigzags with uniformly vertical orientation that illustrates themes of frequency and repetition, mathematical precision, and chromatic variation within sameness of patternImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/geometric-abstract-zigzags-uniformly-vertical-orientation-268069727">Image used under license from Freestock.com</a>
Varicolored abstract of contiguous zigzags for decoration and backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/varicolored-abstract-contiguous-zigzags-decoration-background-291771500">Image used under license from Freestock.com</a>
Geometric pattern of zigzags in black and white for backgrounds and other illustrative elementsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/geometric-pattern-zigzags-black-white-backgrounds-268070084">Image used under license from Freestock.com</a>
Varicolored abstract illustration of narrow zigzagsImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/varicolored-abstract-illustration-narrow-zigzags-240162358">Image used under license from Freestock.com</a>
Abstract pattern of S-curves in black and whiteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/abstract-pattern-scurves-black-white-277901186">Image used under license from Freestock.com</a>
Multicolored abstract pattern of wavy fluidity for decoration and backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/multicolored-abstract-pattern-wavy-fluidity-decoration-283975586">Image used under license from Freestock.com</a>
Decorative varicolored abstract of spooning S-curves with predominance of green that illustrates both sameness and variationImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/decorative-varicolored-abstract-spooning-scurves-predominance-284732060">Image used under license from Freestock.com</a>
Abstract varicolored pattern of zigzags for geometric motifs in decoration and backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/abstract-varicolored-pattern-zigzags-geometric-motifs-277910525">Image used under license from Freestock.com</a>
Flippable multicolored geometric abstract of zigzags for themes of repetition, variation, or synergy in decoration and backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/flippable-multicolored-geometric-abstract-zigzags-themes-291798392">Image used under license from Freestock.com</a>
Geometric abstract pattern of contiguous zigzags with various shades of green and a few pink stripes for motifs of angularity, alternation, repetitionImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/geometric-abstract-pattern-contiguous-zigzags-various-277906418">Image used under license from Freestock.com</a>
Bright abstract synergistic pattern of contiguous S-curves with pastel greens, for themes of fluidity, alternation, simultaneityImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/bright-abstract-synergistic-pattern-contiguous-scurves-277906427">Image used under license from Freestock.com</a>
Parti-colored abstract illustration of wavy oscillation with predominance of brown and gold for background and decoration with motifs of fluid motionImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/particolored-abstract-illustration-wavy-oscillation-predominance-284275046">Image used under license from Freestock.com</a>
Geometric varicolored abstract of zigzag stripes for decoration and background with themes of repetition, variation, synergyImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/geometric-varicolored-abstract-zigzag-stripes-decoration-293085221">Image used under license from Freestock.com</a>
Three pennant-shaped shadowed recesses of exterior wall of university building in afternoon sunlightImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/three-pennantshaped-shadowed-recesses-exterior-wall-2983902">Image used under license from Freestock.com</a>
Zigzag shadows of black handrail on red brick stairway on college campusImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/zigzag-shadows-black-handrail-red-brick-2983418">Image used under license from Freestock.com</a>

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