wave front

doglegs, curvature, camber, curves, mounding, gradients, ridges, corrugations, contour, slope, bends, backspin, slickrock, rhomboids, knolls, sidecut, hummocks, amplitude, waviness, striations, isobars, straightaways, wavelike, backbend, esses, clubhead, apexes, greens, grooves, sine curve, convex, topography, rills, fairways, metamorphic rock, dimpling, dodecahedron, upslope, escarpments, roundness, scalelike, sidehill, modulations, tubercles, sastrugi, meridional, basilar membrane, downslope, sidespin, cumulonimbus cloud, landforms, plateaux, precipices, concave, velocities, concavity, poa, inclines, bumpiness, deformation, ruts, oblique angle, serpentine, isosceles triangle, humps, foliation, angular velocity, indentations, acoustic impedance, dihedral, hyperbolic geometry, conductance, equilateral triangle, backswing, angularity, upstroke, compressional, paspalum, flatness, arcsecond, whorls, swales, switchback, soleplate, springiness, loops, steepness, crosshatching, layout, pronation, hollows, rooty, planetesimal, wedgy, harmonic progression, rhombus, sine wave, rutty, verticle, fescue grass, whitecap, temperature gradient, undulations, gradation, vibration, heaving, oscillation, rocking, rolling, twitching, swaying, zigzag, alternation, bend, pulsation, clicking, ebb, quiver, ripple, swing, motion, pull

flap, flapping, flopping, fluctuation, flutter, fluttering, gravitation wave, gravity wave, impulse, pulse, pulsing, seiche, sound wave, standing wave, stationary wave, waveform, wave form, wave shape

ground swell, heavy swell

periodic event, recurrent event

wave