Synonyms
Antonyms

1. activation

noun. ['ˌæktəˈveɪʃən'] the activity of causing to have energy and be active.

Synonyms

  • activating
  • vivification
  • animation
  • electrification
  • activity
  • invigoration

Antonyms

  • spirited
  • inactiveness
  • spiritless
  • nonbeing

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Rhymes with Activation Energy

  • cenergy

Sentences with activation-energy


1. Noun Phrase
The activation energy is only required at the beginning, to let the chemical reaction start.

2. Noun Phrase
Most of the enzymes in cells are proteins and lower the activation energy for chemical processes to begin.

3. Noun Phrase
Based on this analysis, activation energy is defined as the minimum energy required to start a chemical reaction.

4. Noun Phrase
The chemical reaction takes place when you reach the activation energy threshold.

2. activation

noun. ['ˌæktəˈveɪʃən'] making active and effective (as a bomb).

Synonyms

  • commencement
  • beginning

Antonyms

  • finish
  • undynamic
  • noncausative

3. activation

noun. ['ˌæktəˈveɪʃən'] stimulation of activity in an organism or chemical.

Synonyms

  • indweller

Antonyms

  • dead
  • nonexistence

4. energy

noun. ['ˈɛnɝdʒi'] (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs.

Synonyms

  • electricity
  • radiant energy
  • atomic energy
  • chemical energy
  • energy state
  • rest energy
  • binding energy
  • radiation
  • alternative energy
  • work
  • electrical energy
  • mechanical energy
  • physical phenomenon
  • free energy
  • activation energy
  • nuclear energy
  • heat energy
  • energy level
  • energy of activation
  • separation energy

Antonyms

  • nonexistence
  • alive
  • unhappiness
  • happiness

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))

5. energy

noun. ['ˈɛnɝdʒi'] forceful exertion.

Synonyms

  • force
  • athleticism
  • forcefulness
  • strenuosity
  • zip
  • vigour
  • strength

Antonyms

  • opacity
  • transparency
  • dull
  • birth

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))

6. energy

noun. ['ˈɛnɝdʒi'] enterprising or ambitious drive.

Synonyms

  • drive
  • get-up-and-go
  • second wind

Antonyms

  • studio
  • idle
  • inactivity
  • fail

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))

7. energy

noun. ['ˈɛnɝdʒi'] an imaginative lively style (especially style of writing).

Synonyms

  • verve
  • vim
  • liveliness
  • life
  • spirit
  • vitality
  • vigour
  • sprightliness
  • muscularity

Antonyms

  • coldness
  • anestrus
  • unemotionality
  • alternating current

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))

8. Energy

noun. the federal department responsible for maintaining a national energy policy of the United States; created in 1977.

Synonyms

  • DOE
  • executive department
  • Energy Department
  • Department of Energy Intelligence
  • DOEI

9. energy

noun. ['ˈɛnɝdʒi'] a healthy capacity for vigorous activity.

Synonyms

  • vim
  • qi
  • ki
  • vitality
  • good health
  • chi
  • ch'i
  • juice

Antonyms

  • courage
  • cowardice
  • deaden
  • inanimateness

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))

10. energy

noun. ['ˈɛnɝdʒi'] any source of usable power.

Antonyms

  • nonbeing

Etymology

  • ἐνέργεια (Ancient Greek (to 1453))
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