aroid(n = noun.plant) arum - any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe;
is a kind of herb, herbaceous plant
is a member of araceae, arum family, family araceae
has particulars: arum maculatum, cuckoopint, jack-in-the-pulpit, lords-and-ladies, arum palaestinum, black calla, alocasia, elephant's ear, elephant ear, amorphophallus, amorphophallus campanulatus, amorphophallus paeonifolius, elephant yam, pungapung, telingo potato, amorphophallus rivieri, devil's tongue, snake palm, umbrella arum, amorphophallus titanum, krubi, titan arum, arisaema atrorubens, arisaema triphyllum, indian turnip, jack-in-the-pulpit, wake-robin, arisaema dracontium, green dragon, arisarum vulgare, friar's-cowl, caladium, colocasia esculenta, dalo, dasheen, taro, taro plant, dieffenbachia sequine, dumb cane, mother-in-law's tongue, mother-in-law plant, dracontium, dracunculus vulgaris, dragon arum, green dragon, nephthytis, malanga, spoonflower, tannia, xanthosoma atrovirens, xanthosoma sagittifolium, yautia
Derived form adjective aroid₁

   aroid(a = adj.pert) araceous - relating to a plant of the family Araceae;
Derived form noun aroid₁

   Belonging to, or resembling, the Arum family of plants (Araceae). [1913 Webster]

   Any plant of the Arum family (Araceæ); -- have small flowers massed on a spadix surrounded by a large spathe. [Webster 1913 Suppl.]

aroid, adj. of or relating to the family Araceae, including arums.

Etymology:
ARUM + -OID