As nouns the difference between peracid and percid
is that peracid is (chemistry) any acid that contains a peroxy group - eg peracetic acid while percid is (zoology) any member of the percidae.
peracid
English
Noun
(
en noun)
(chemistry) Any acid that contains a peroxy group - e.g. peracetic acid
(inorganic chemistry) The oxyacid of a particular element that has the largest number of oxygen atoms - e.g. perchloric acid
percid
English
Noun
(
en noun)
(zoology) Any member of the Percidae.