pref. 1. Four: tetrode. 2. Containing four of a specified kind of atom, radical, or group: tetrachloride. [Greek; see kwetwer- in the Appendix of Indo-European roots.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. Any of numerous small colorful tropical freshwater fishes chiefly of the family Characidae, such as the neon tetra, often kept in home aquariums. [Short for New Latin Tetragōnopterīnī, group name : Late Latin tetragōnum, tetragon; see TETRAGON + Greek pteron, wing.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.