Answer: buffers

AnswerCrossword Clue
buffersA solution that resists changes in pH when acid or alkali is added to it. Buffers typically involve a weak acid or alkali together with one of its salts
buffersA temporary memory area or queue used when transferring data between devices or programs operating at different speeds
buffersA person or thing that prevents incompatible or antagonistic people or things from coming into contact with or harming each other
buffersBUFFER, to protect against shock more BUFF