English主要词典
acid
Universal Words
noun, adjective
noun
1 [U,C] (chemistry) a chemical compound, usually a liquid, that contains HYDROGEN and has a PH of less than seven. The HYDROGEN can be replaced by a metal to form a SALT. Acids are usually sour and can often burn holes in or damage things they touch.
compareALKALI
seealsoACETICACID, AMINOACID, CITRICACID, HYDROCHLORICACID, LACTICACID, NITRICACID, NUCLEICACID, SULPHURICACID
2 [U] (slang) = LSD
adjective
1 (technical) that contains acid or has the essential characteristics of an acid; that has a PH of less than seven:
Rye is tolerant of poor, acid soils.
compareALKALINE
2 that has a bitter sharp taste
SYNSOUR:
acid fruit
3 (written) (of a person's remarks) critical and unkind
SYNSARCASTIC:
an acid wit