dimidiate

1. not comparableDivided into two (equal) halves.

   Synonyms: bisected

2. not comparableConsisting of only one half of what the normal condition requires; having the appearance of lacking one half.

   a dimidiate leaf, which has only one side developed

3. not comparableHaving the organs of one side, or half, different in function from the corresponding organs on the other side.

   dimidiate hermaphroditism

present singular third person dimidiates · participle present dimidiating · participle past dimidiated · past dimidiated

1. transitiveTo divide into two.

   […] it may be dimidiated: for instance, half a rose and half a lis being stuck together, or half a lis and half an eagle.

   1915, Guy Cadogan Rothery, ABC of Heraldry, page 175

   Synonyms: halve

2. transitivegovernmentTo represent one half of, or undergo dimidiation with.

   […] hybridization in the same vein is the beast shown as supporters to arms granted in 1971, where a unicorn dimidiates a lion rampant.

   1973, Rhodesiana, numbers 28–31, The Rhodesia Africana Society, page 36