This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Having or exhibiting two contrasting modes or forms: "American supermarket shopping shows bimodal behavior—careful, nutritious choices mixed with salty, high-fat snack foods” ( Sheryl Julian).

adj. Having two distinct statistical modes.

adj. Designed for operation on either railroads or highways. Used of vehicles.

adj. Having two modes or forms

adj. Having two modes (local maxima)

adj. having or occurring with two modes{9}; having two maxima; -- of a curve or distribution.

Having two modes. In a table of frequencies the mode is the most frequent measure. If the curve of frequencies has two maxima it is called bimodal.

adj. of a distribution; having or occurring with two modes

"(The pertinent experiments were done with monkeys using rakes to manipulate distal objects; specific "bimodal" neurons that usually fire when the monkey's fingertips are touched eventually began to fire when the tip of the rake is touched, thus suggesting that the brain had "incorporated" the rake into its somatosensory "body schema.")"

unimodal   

modes{9}   

4-connected    k-partite    k-colored    multi-circular    sectorial    planar    combinatorial    trigonal    sensate    3-dimensional