catacaustic

名词 n.
/ˌkætəˈkɔːstɪk/|/ˌkætəˈkɒstɪk/    /ˌkætəˈkɑstɪk/

英文释义

名词 n.
  1. a caustic curve formed by light reflecting from a curved surface
  2. the envelope of all rays that emanate from a specified point (the radiant point) and reflect from a given curve; the evolute of the orthotomic

词形变化

catacaustics plural

词源

Etymology tree
Proto-Indo-European *ḱe?
Proto-Indo-European *ḱóm
Proto-Indo-European *ḱm̥-th₂der.?
Proto-Hellenic *kətá
Ancient Greek κᾰτᾰ́ (kătắ)
Ancient Greek κᾰτᾰ- (kătă-)
English cata-
English caustic
English catacaustic
From cata- + caustic.
0 次浏览 数据来源: Wiktionary