Definitions of arum
  1. noun
    any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe
    synonyms: aroid
    see moresee less
    show 20 types...
    hide 20 types...
    Arum maculatum, cuckoopint, jack-in-the-pulpit, lords-and-ladies
    common European arum with lanceolate spathe and short purple spadix; emerges in early spring; source of a starch called arum
    Arum palaestinum, black calla
    ornamental plant of Middle East cultivated for its dark purple spathe
    alocasia, elephant ear, elephant's ear
    any plant of the genus Alocasia having large showy basal leaves and boat-shaped spathe and reddish berries
    any plant of the genus Amorphophallus
    Amorphophallus campanulatus, Amorphophallus paeonifolius, elephant yam, pungapung, telingo potato
    putrid-smelling aroid of southeastern Asia (especially the Philippines) grown for its edible tuber
    Amorphophallus rivieri, devil's tongue, snake palm, umbrella arum
    foul-smelling somewhat fleshy tropical plant of southeastern Asia cultivated for its edible corms or in the greenhouse for its large leaves and showy dark red spathe surrounding a large spadix
    Amorphophallus titanum, krubi, titan arum
    malodorous tropical plant having a spathe that resembles the corolla of a morning glory and attains a diameter of several feet
    Arisaema atrorubens, Arisaema triphyllum, Indian turnip, jack-in-the-pulpit, wake-robin
    common American spring-flowering woodland herb having sheathing leaves and an upright club-shaped spadix with overarching green and purple spathe producing scarlet berries
    Arisaema dracontium, green dragon
    early spring-flowering plant of eastern North America resembling the related jack-in-the-pulpit but having digitate leaves, slender greenish yellow spathe and elongated spadix
    Arisarum vulgare, friar's-cowl
    tuberous perennial having a cowl-shaped maroon or violet-black spathe; Mediterranean; Canaries; Azores
    any plant of the genus Caladium cultivated for their ornamental foliage variously patterned in white or pink or red
    Colocasia esculenta, dalo, dasheen, taro, taro plant
    herb of the Pacific islands grown throughout the tropics for its edible root and in temperate areas as an ornamental for its large glossy leaves
    Dieffenbachia sequine, dumb cane, mother-in-law plant, mother-in-law's tongue
    an evergreen plant with large showy dark green leaves; contains a poison that swells the tongue and throat hence the name
    any plant of the genus Dracontium; strongly malodorous tropical American plants usually with gigantic leaves
    Dracunculus vulgaris, dragon arum, green dragon
    European arum resembling the cuckoopint
    any plant of the genus Nephthytis
    Xanthosoma atrovirens, Xanthosoma sagittifolium, malanga, spoonflower, tannia, yautia
    tropical American aroid having edible tubers that are cooked and eaten like yams or potatoes
    Alocasia macrorrhiza, giant taro
    large evergreen with extremely large erect or spreading leaves; cultivated widely in tropics for its edible rhizome and shoots; used in wet warm regions as a stately ornamental
    Caladium bicolor
    most popular caladium; cultivated in many varieties since the late 19th century
    Nephthytis afzelii
    tropical rhizomatous plant cultivated as an ornamental for its large sagittate leaves
    type of:
    herb, herbaceous plant
    a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
  2. noun
    starch resembling sago that is obtained from cuckoopint root
    see moresee less
    type of:
    amylum, starch
    a complex carbohydrate found chiefly in seeds, fruits, tubers, roots and stem pith of plants, notably in corn, potatoes, wheat, and rice; an important foodstuff and used otherwise especially in adhesives and as fillers and stiffeners for paper and textiles
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week