From half- + maximal. <span class="searchmatch">halfmaximal</span> (not comparable) (medicine) That produces half of the maximum response...
half-integral half-island half-jacket half-jokingly half-life half-marathon <span class="searchmatch">halfmaximal</span> half-metallic half-monthly half-moon half-naked half-open half-pint half-pipe...
2\}} and { 2 , 3 } {\displaystyle \{2,3\}} maximum (adjective) minimal <span class="searchmatch">halfmaximal</span> maximal ideal maximal munch submaximal supermaximal maximative largest...