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lase

Rare / Technical
UK/leɪz/US/leɪz/

Technical / Medical / Scientific

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Definition

Meaning

To emit coherent light or radiation; to function as a laser.

To subject to the action of a laser; to cut, remove, or treat with a laser.

Linguistics

Semantic Notes

A back-formation from 'laser'. Primarily used in technical contexts (e.g., physics, medicine, manufacturing). It is not a common verb in general English.

Dialectal Variation

British vs American Usage

Differences

No significant regional differences in meaning or usage. The word is used identically in technical registers.

Connotations

Neutral, purely technical.

Frequency

Equally rare in both dialects, confined to specialist fields.

Vocabulary

Collocations

strong
materialtissuecrystalbeam
medium
preciselysurgicallycoherentlypulse
weak
deviceenergytarget

Grammar

Valency Patterns

[The device/subject] lases [patient/material][Surgeon/technician] lased [patient/material] [prepositional phrase]

Vocabulary

Synonyms

Strong

irradiate (with laser)zap (colloquial, with laser)

Neutral

emit laser light

Weak

treat (with laser)cut (with laser)

Vocabulary

Antonyms

absorb lightdiffuse

Phrases

Idioms & Phrases

  • “None. The word is purely technical.”

Usage

Context Usage

Business

Used only in very specific high-tech manufacturing or medical device companies.

Academic

Used in physics, engineering, and medical research papers.

Everyday

Virtually never used.

Technical

Primary context. E.g., 'The ruby crystal lases at 694 nm.' or 'The surgeon lased the tumour.'

Examples

By Part of Speech

verb

British English

  • The new medical device can lase tissue with incredible precision.
  • They needed the crystal to lase at a specific frequency for the experiment.

American English

  • The surgeon will lase the cataract during the procedure.
  • This diode is designed to lase continuously for over 10,000 hours.

adverb

British English

  • No common adverbial form.

American English

  • No common adverbial form.

adjective

British English

  • No common adjectival form.

American English

  • No common adjectival form.

Examples

By CEFR Level

B1
  • Doctors sometimes use a special light to lase away skin problems.
B2
  • The engineer explained how the machine uses a crystal to lase and cut through metal.
  • Certain gases can lase when stimulated electrically.
C1
  • The quantum dot array was engineered to lase at room temperature, a significant breakthrough.
  • The dermatologist lased the port-wine stain in a series of outpatient procedures.

Learning

Memory Aids

Mnemonic

Think: 'LASER' is the machine, 'to LASE' is what it does. A laser needs to 'lase' to be useful.

Conceptual Metaphor

TOOL AS ACTION: The tool (laser) becomes the verb for its function.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Avoid translating directly as 'лазер' (noun). The verb is 'испускать лазерное излучение' or 'обрабатывать лазером'.
  • Do not confuse with 'lace' (кружево) or 'laze' (бездельничать).

Common Mistakes

  • Using 'lase' as a general verb for shining light (only for coherent laser light).
  • Misspelling as 'laze'.
  • Assuming it is a common verb.

Practice

Quiz

Fill in the gap
In ophthalmology, surgeons often the cornea to correct a patient's vision.
Multiple Choice

In which context is the verb 'lase' most appropriately used?

FAQ

Frequently Asked Questions

Yes, but it is a specialist technical verb derived from 'laser'. It is not common in everyday language.

No. 'Lase' specifically refers to the emission or application of coherent laser light, not ordinary light.

It is a regular verb: 'lased' (e.g., 'The technician lased the sample yesterday').

It is used identically and with the same rarity in both dialects, only within technical fields like medicine, physics, and engineering.