| coarse | | |
| adj. | 1. coarse, harsh | of textures that are rough to the touch or substances consisting of relatively large particles.; "coarse meal"; "coarse sand"; "a coarse weave" |
| ~ large-grained, coarse-grained | not having a fine texture.; "coarse-grained wood"; "large-grained sand" |
| ~ coarse-grained, grainy, granular, granulose, gritty, farinaceous, mealy | composed of or covered with particles resembling meal in texture or consistency.; "granular sugar"; "the photographs were grainy and indistinct"; "it left a mealy residue" |
| ~ granulated | made grainy or formed into granules.; "granulated sugar" |
| ~ plush-like, plushy | (of textures) resembling plush. |
| ~ loose, open | (of textures) full of small openings or gaps.; "an open texture"; "a loose weave" |
| ~ rough, unsmooth | having or caused by an irregular surface.; "trees with rough bark"; "rough ground"; "rough skin"; "rough blankets"; "his unsmooth face" |
| adj. | 2. coarse, common, rough-cut, uncouth, vulgar | lacking refinement or cultivation or taste.; "he had coarse manners but a first-rate mind"; "behavior that branded him as common"; "an untutored and uncouth human being"; "an uncouth soldier--a real tough guy"; "appealing to the vulgar taste for violence"; "the vulgar display of the newly rich" |
| ~ unrefined | (used of persons and their behavior) not refined; uncouth.; "how can a refined girl be drawn to such an unrefined man?" |
| adj. | 3. coarse, common | of low or inferior quality or value.; "of what coarse metal ye are molded"; "produced...the common cloths used by the poorer population" |
| ~ inferior | of low or inferior quality. |
| undulation | | |
| n. (shape) | 1. undulation, wave | an undulating curve. |
| ~ curve, curved shape | the trace of a point whose direction of motion changes. |
| ~ sine curve, sinusoid | the curve of y=sin x. |
| n. (event) | 2. undulation | wavelike motion; a gentle rising and falling in the manner of waves. |
| ~ motion, movement | a natural event that involves a change in the position or location of something. |
| n. (event) | 3. undulation, wave | (physics) a movement up and down or back and forth. |
| ~ natural philosophy, physics | the science of matter and energy and their interactions.; "his favorite subject was physics" |
| ~ motion, movement | a natural event that involves a change in the position or location of something. |
| ~ gravitation wave, gravity wave | (physics) a wave that is hypothesized to propagate gravity and to travel at the speed of light. |
| ~ sine wave | a wave whose waveform resembles a sine curve. |
| ~ oscillation, vibration | (physics) a regular periodic variation in value about a mean. |
| ~ fluctuation | a wave motion.; "the fluctuations of the sea" |
| ~ seiche | a wave on the surface of a lake or landlocked bay; caused by atmospheric or seismic disturbances. |
| ~ standing wave, stationary wave | a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time. |
| ~ traveling wave, travelling wave | a wave in which the medium moves in the direction of propagation of the wave. |
| ~ acoustic wave, sound wave | (acoustics) a wave that transmits sound. |
| ~ wave form, wave shape, waveform | the shape of a wave illustrated graphically by plotting the values of the period quantity against time. |
| ~ blast wave, shock wave | a region of high pressure travelling through a gas at a high velocity.; "the explosion created a shock wave" |
| ~ pulsation, pulse, pulsing, impulse | (electronics) a sharp transient wave in the normal electrical state (or a series of such transients).; "the pulsations seemed to be coming from a star" |
| ~ flapping, fluttering, flap, flutter | the motion made by flapping up and down. |
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