1

cone

noun \ ˈkōn \

Definition of cone

1 a :a solid generated by rotating a right triangle about one of its legs called also right circular cone
b :a solid bounded by a circular or other closed plane base and the surface formed by line segments joining every point of the boundary of the base to a common vertex — see Volume Formulas Table
c :a surface traced by a moving straight line passing through a fixed vertex
2 a :a mass of ovule-bearing or pollen-bearing scales or bracts in most conifers or in cycads that are arranged usually on a somewhat elongated axis
b :any of several flower or fruit clusters suggesting a cone
3 :something that resembles a cone in shape: such as
a :any of the conical photosensitive receptor cells of the vertebrate retina that function in color vision — compare rod 3
b :any of a family (Conidae) of tropical marine gastropod mollusks that inject their prey with a potent toxin
c :the apex of a volcano
d :a crisp usually cone-shaped wafer for holding ice cream

Examples of cone in a Sentence

  1. He scooped out the popcorn with a paper cone.

Recent Examples of cone from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of cone

Origin and Etymology of cone

Middle French or Latin; Middle French, from Latin conus, from Greek kōnos


2

cone

verb

Definition of cone

coned; coning
transitive verb
1 :to make cone-shaped
2 :to bevel like the slanting surface of a cone
  • cone a tire

First Known Use of cone

1845



CONE Defined for English Language Learners

cone

noun

Definition of cone for English Language Learners

  • : a shape that has a pointed top and sides that form a circle at the bottom

  • : a hard and dry part that is the fruit of a pine tree or other evergreen plant and contains many seeds

  • : something that looks like a cone


CONE Defined for Kids

cone

noun \ ˈkōn \

Definition of cone for Students

1 :a thin crisp cookie shaped to hold ice cream
2 :a scaly structure of certain trees (as the pine or fir) that produces pollen or egg cells and seeds
3 :a shape with a circular base and sides that taper evenly to a point
4 :a cell of the retina of the eye that is sensitive to colored light

Medical Dictionary

cone

noun \ ˈkōn \

medical Definition of cone

1 :a solid having a circular base and sides that slope evenly to a point
2 a :any of the conical photosensitive receptor cells of the vertebrate retina that function in color vision — compare rod
b :any of a family (Conidae) of numerous somewhat conical tropical gastropod mollusks that include a few highly poisonous forms — see conus
3 :a cusp of a tooth especially in the upper jaw


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