IPA: /əˈbreɪdəbl/
KK: /əˈbrādəbəl/
Something that can be worn away or scraped off through friction or abrasion.
The abradable material was used in the construction of the aircraft to reduce wear and tear.
Abradable is formed from "ab-" (meaning away) and "radere" (meaning to scrape). The word describes a material that can be scraped away or worn down.
Think of something that can be 'scraped away' ('radere') — that's why 'abradable' refers to a material that can be worn down.