AskDefine | Define acuminate

Dictionary Definition

acuminate adj : of a leaf shape; narrowing to a slender point v : make sharp or acute; taper; make (something) come to a point

User Contributed Dictionary



  • Adjective:
    • (RP): /əˈkjuːmɪnət/
  • Verb:
    • (RP): /əˈkjuːmɪneɪt/


From Late Latin acuminatus, past participle of acuminare, to sharpen to a point


  1. Tapering to a point; pointed.
  2. Tapering to a long point at its apex.


  1. To render sharp or keen; to sharpen.
  2. To end in or come to a sharp point.

Derived terms



  1. Feminine plural form of acuminato

Extensive Definition

In botany, the following terms are used to describe the shape of plant leaves:
  • Acicular (acicularis): Slender and pointed, needle-like
  • Acuminate (acuminata): Tapering to a long point
  • Aristate (aristata): Ending in a stiff, bristle-like point
  • Bipinnate (bipinnata): Each leaflet also pinnate
  • Cordate (cordata): Heart-shaped, stem attaches to cleft
  • Cuneate (cuneata): Triangular, stem attaches to point
  • Deltoid (deltoidea): Triangular, stem attaches to side
  • Digitate (digitata): Divided into finger-like lobes
  • Elliptic (elliptica): Oval, with a short or no point
  • Falcate (falcata): sickle-shaped
  • Flabellate (flabellata): Semi-circular, or fan-like
  • Hastate (hastata): shaped like a spear point, with flaring pointed lobes at the base
  • Lance-shaped, lanceolate (lanceolata): Long, wider in the middle
  • Linear (linearis): Long and very narrow
  • Lobed (lobata): With several points
  • Obcordate (obcordata): Heart-shaped, stem attaches to tapering point
  • Oblanceolate (oblanceolata): Top wider than bottom
  • Oblong (oblongus): Having an elongated form with slightly parallel sides
  • Obovate (obovata): Teardrop-shaped, stem attaches to tapering point
  • Obtuse (obtusus): With a blunt tip
  • Orbicular (orbicularis): Circular
  • Ovate (ovata): Oval, egg-shaped, with a tapering point
  • Palmate (palmata): Divided into many lobes
  • Pedate (pedata): Palmate, with cleft lobes
  • Peltate (peltata): Rounded, stem underneath
  • Perfoliate (perfoliata): Stem through the leaves
  • Pinnate (pinnata): Two rows of leaflets
    • odd-pinnate, imparipinnate: pinnate with a terminal leaflet
    • paripinnate, even-pinnate: pinnate lacking a terminal leaflet
    • pinnatifid and pinnatipartite: leaves with pinnate lobes that are not discrete, remaining sufficiently connected to each other that they are not separate leaflets.
    • bipinnate, twice-pinnate: the leaflets are themselves pinnately-compound
    • tripinnate, thrice-pinnate: the leaflets are themselves bipinnate
    • tetrapinnate: the leaflets are themselves tripinnate.
  • Pinnatisect (pinnatifida): Cut, but not to the midrib (it would be pinnate then)
  • Reniform (reniformis): Kidney-shaped
  • Rhomboid (rhomboidalis): Diamond-shaped
  • Round (rotundifolia): Circular
  • Sagittate (sagittata): Arrowhead-shaped
  • Spatulate, spathulate (spathulata): Spoon-shaped
  • Spear-shaped (hastata): Pointed, with barbs
  • Subulate (subulata): Awl-shaped with a tapering point
  • Sword-shaped (ensiformis): Long, thin, pointed
  • Trifoliate, ternate (trifoliata): Divided into three leaflets
  • Tripinnate (tripinnata): Pinnately compound in which each leaflet is itself bipinnate
  • Truncate (truncata): With a squared off end
  • Unifoliate (unifoliata): with a single leaf


acuminate in German: Blattform
acuminate in Spanish: Forma de hojas
acuminate in French: Forme foliaire
acuminate in Macedonian: Облици на лист
acuminate in Dutch: Bladvorm
acuminate in Polish: Kształt liścia
acuminate in Tonga (Tonga Islands): Fakaloupata
acuminate in Turkish: Yaprak türleri
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