(chess) A pawn that has no friendly pawn on an adjacent file.

(prepositive) Characterised by personal separation of individuals due to the practice of social distancing and self-isolation.

simple past tense and past participle of self-isolate

plural of isolated system

plural of language isolate

(linguistics) A natural language with no proven genetic relationship to another language.

A collection of a building’s structural elements resting on its foundation to provide partial separation of the building from shaking ground thus upgrading the building's seismic fitness. For video demonstration, click here: http://www.youtube.com/user/vshustov#p/f/11/ZqlXp3czrrM

(chemistry, physics) a technique for maintaining reactive molecules in an inert material at low temperature for spectroscopic study

(sound, headphones) the property of blocking off outside sound through use of materials that reduce sound transmission from the exterior environment into the interior environment

(Canada) Additional money paid to workers based in remote communities to compensate for higher living and travel costs.