1

spike

play
noun \ ˈspīk \

Definition of spike

1 :a very large nail
2 a :one of a row of pointed irons placed (as on the top of a wall) to prevent passage
b (1) :one of several metal projections set in the sole and heel of a shoe to improve traction
(2) spikes plural :a pair of shoes having spikes attached to the soles or soles and heels
c :spindle 1e
3 :something resembling a spike: such as
a :a young mackerel not over six inches (15.2 centimeters) long
b :an unbranched antler of a young deer
4 spikes plural :spike heel 2
5 :the act or an instance of spiking (as in volleyball)
6 a :a pointed element in a graph or tracing
b :an unusually high and sharply defined maximum (as of amplitude in a wave train)
8 :a momentary sharp increase and fall in electric potential; also :action potential
9 :an abrupt sharp increase (as in prices or rates)

spikelike

play \ˈspīk-ˌlīk\ adjective

Origin and Etymology of spike

Middle English, probably from Old Norse spīk splinter & spīkr spike; akin to Middle Dutch spiker spike — more at spoke


2

spike

verb

Definition of spike

spiked; spiking
transitive verb
1 :to fasten or furnish with spikes
2 a :to disable (a muzzle-loading cannon) temporarily by driving a spike into the vent
b :to suppress or block completely
  • spiked the rumor
3 a :to pierce or impale with or on a spike
b :to reject (a story) for publication or broadcast for editorial reasons
4 a :to add an alcoholic beverage to (a drink)
  • spiked the punch
b :to add a foreign substance to
  • spike the coffee with tranquilizers
c :to add something highly reactive (such as a radioactive tracer) to
d :to add vitality, zest, or spice to :liven
  • spiked the speech with humor
  • spike the broth with peppers
5 :to drive (something, such as a volleyball) sharply downward with a hard blow; also :to throw down sharply
  • spiked the ball in the end zone
6 :to undergo a sudden sharp increase in (temperature or fever)
  • the patient spiked a fever of 103°
intransitive verb
:to increase sharply
  • battery sales spiked after the storm

spiker

noun

Examples of spike in a Sentence

  1. Someone spiked the punch at the party.

  2. The medication caused his blood pressure to spike.

  3. She spiked the ball and scored the winning point.

  4. After he scored a touchdown he spiked the ball in the end zone.

First Known Use of spike

1624

Other Broadcasting Terms


3

spike

noun

Definition of spike

1 :an ear of grain
2 :an elongated inflorescence similar to a raceme but having the flowers sessile on the main axis — see inflorescence illustration

Origin and Etymology of spike

Middle English spik, from Latin spica — more at spine



SPIKE Defined for English Language Learners

spike

verb

Definition of spike for English Language Learners

  • : to add alcohol or drugs to (food or drink)

  • : to add something that gives flavor or interest to (something)

  • : to increase greatly in a short period of time


SPIKE Defined for Kids

1

spike

play
noun \ ˈspīk \

Definition of spike for Students

1 :a very large nail
2 :something pointed like a nail
  • She even wanted to forget … her horrible hair, now drying into stiff spikes.
  • —Beverly Cleary, Ramona Quimby
3 :one of the metal objects attached to the heel and sole of a shoe (as a baseball shoe) to prevent slipping

2

spike

verb

Definition of spike for Students

spiked; spiking
1 :to fasten with large nails
2 :to pierce or cut with or on a large nail
3 :to hit or throw (a ball) sharply downward
4 :to add alcohol or drugs to

3

spike

noun

Definition of spike for Students

1 :a tight mass of grain
  • spikes of wheat
2 :a long usually rather narrow flower cluster in which the blossoms grow very close to a central stem

Medical Dictionary

1

spike

play
noun \ ˈspīk \

medical Definition of spike

:a change (as in voltage) involving a sharp increase and fall or a recording of this: as
a :the pointed element in the wave tracing in an electroencephalogram
b :a sharp increase in body temperature followed by a rapid fall
  • a fever with spikes to 103°
c (1) :the sharp increase and fall in the recorded action potential of a stimulated nerve cell that during the increasing phase corresponds to an inrush of sodium ions to the interior of the cell and during the decreasing phase corresponds to a slowing of the influx of sodium ions and to an increasing efflux of potassium ions to the exterior

2

spike

transitive verb

medical Definition of spike

spiked; spiking
:to undergo a sudden sharp increase in (temperature or fever) usually up to an indicated level
  • infected patients spiked fevers as high as 105°F


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