anastigmatic

Từ điển Oxford Learners Wordfinder Dictionary

adjective

1. pertaining to a lens or lens system free of astigmatism (able to form point images)
• Syn:
stigmatic
• Pertains to noun:
stigmatism (for: stigmatic), anastigmat
• Derivationally related forms:
stigmatism (for: stigmatic)
2. not astigmatic
• Syn:
stigmatic
• Ant:
astigmatic
• Derivationally related forms:
stigmatism (for: stigmatic)