cationic
/ˌkat-(ˌ)ī-ˈä-nik ˌka-(ˌ)tī-/ (ame, mw)
cationic — 形容詞
- cationicpositive
- more cationiccomparative
- most cationicsuperlative
1. connected with a positively charged ion, or having that kind of charge as part o
陽離子性
與陽離子有關或帶正電
connected with a positively charged ion, or having that kind of charge as part of it.
In the lab, students tested how a cationic dye clung to white cotton.
在實驗室裡，學生測試陽離子性染料會如何附著在白棉布上。
cationic + dye
The chart marked cationic particles with a plus sign beside each name.
圖表在每個名稱旁畫上加號，標出那些陽離子性粒子。
plus sign signals positive charge
During class, Hana compared a cationic coating with a neutral one under the microscope.
上課時，Hana 在顯微鏡下比較陽離子性塗層和中性塗層。
Because the filter was cationic, it pulled metal ions from the dirty water.
因為這個濾材帶有陽離子性，它把髒水裡的金屬離子吸住了。
- positively charged
broader plain-English phrase that explains the same charge idea with less technical wording
- cation-bearing
rare technical wording that stresses the presence of cations in a material or surface
文法句型
cationic + dye/coating/polymer/surface
be + cationic
用法筆記
Usually appears in chemistry or materials-science writing before nouns such as dye, polymer, coating, or surface. In less technical English, writers often explain it with the broader phrase 'positively charged' instead.