phthal-
combining form 
or phthalo-
Etymology: International Scientific Vocabulary, from phthalic (in phthalic acid) 
 : phthalic acid : related to phthalic acid 
< phthalamic acid >
< phthalonitrile >
or phthalo-
< phthalamic acid >
< phthalonitrile >
| 词汇 | phthal- | 
| 词根词缀 | Webster phthal- or phthalo- < phthalamic acid > < phthalonitrile > | 
| 随便看 | 
英语词根词缀词典收录了54763条英语词根词缀词条,基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析,是记忆英语词汇的必备工具。