glide slope: meaning, definition, pronunciation and examples
C2/TechnicalTechnical/Aviation
Quick answer
What does “glide slope” mean?
The correct descent path for an aircraft to follow when landing, providing both vertical and lateral guidance.
Audio
Pronunciation
Definition
Meaning and Definition
The correct descent path for an aircraft to follow when landing, providing both vertical and lateral guidance.
A predetermined ideal path of descent, typically set at an angle of approximately 3 degrees above horizontal, defined by radio signals from an instrument landing system (ILS). Figuratively, it can refer to any ideal, guided path toward a target or goal.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core meaning or usage. The term is standard international aviation English. Spelling remains the same.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low-frequency in general language but standard and high-frequency within aviation contexts in both regions.
Grammar
How to Use “glide slope” in a Sentence
The pilot [verb, e.g., maintained, captured, followed] the glide slope.The aircraft was [preposition, e.g., on, above, below] the glide slope.[Noun, e.g., Approach, Landing] requires a stable glide slope.Vocabulary
Collocations
Examples
Examples of “glide slope” in a Sentence
verb
British English
- N/A - not standard verb usage.
American English
- N/A - not standard verb usage.
adverb
British English
- N/A - not used as an adverb.
American English
- N/A - not used as an adverb.
adjective
British English
- The glide-slope antenna was inspected.
- The pilot monitored the glide-slope indication.
American English
- The glide-slope receiver is critical for the approach.
- A glide-slope deviation warning sounded.
Usage
Meaning in Context
Business
Rare. Potentially used metaphorically in project management: 'We need to get the quarterly projections back on the glide slope.'
Academic
Used in aeronautical engineering, aviation studies, and physics related to motion.
Everyday
Extremely rare except among pilots, air traffic controllers, or aviation enthusiasts.
Technical
Core, standard term in aviation, air traffic control, flight simulation, and aircraft manual documentation.
Vocabulary
Synonyms of “glide slope”
Strong
Neutral
Weak
Vocabulary
Antonyms of “glide slope”
Watch out
Common Mistakes When Using “glide slope”
- Misspelling as 'glideslope' (sometimes accepted) or 'glide-slope' (common in attributive use).
- Confusing 'glide slope' (vertical guidance) with 'localizer' (lateral guidance) in the ILS.
- Using it as a verb (e.g., 'to glide slope' is incorrect).
FAQ
Frequently Asked Questions
In modern aviation terminology, they are essentially synonymous and used interchangeably, both referring to the vertical guidance component of an ILS.
Yes, but only figuratively, to describe an ideal, pre-planned trajectory towards a goal (e.g., 'The project is on its financial glide slope'). This usage is metaphorical and niche.
The standard angle for an ILS glide slope is approximately 3 degrees above horizontal, though it can vary slightly at specific airports due to terrain or obstacles.
It is primarily a compound noun. It can function attributively as a modifier (e.g., 'glide-slope signal'), where it is often hyphenated.
The correct descent path for an aircraft to follow when landing, providing both vertical and lateral guidance.
Glide slope is usually technical/aviation in register.
Glide slope: in British English it is pronounced /ˈɡlaɪd sləʊp/, and in American English it is pronounced /ˈɡlaɪd sloʊp/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[Figurative] Get back on the glide slope: Return to the correct plan or trajectory.”
Learning
Memory Aids
Mnemonic
Imagine a slide (glide) at a specific, safe angle (slope) that leads an aeroplane perfectly down to the runway.
Conceptual Metaphor
A PATH metaphor: A journey (landing) follows a prescribed, narrow path (glide slope) to a destination (runway). Used for guidance, precision, and correct procedure.
Practice
Quiz
What does 'glide slope' primarily refer to?