WordReference Random House Unabridged Dictionary of American English © 2026
pycn-,
WordReference Random House Unabridged Dictionary of American English © 2026- var. of pycno- before a vowel:pycnium.
pycno-,
- a combining form meaning "dense,'' "close,'' "thick,'' used in the formation of compound words:pycnometer.
- Neo-Latin, combining form representing Greek pyknós
'pycn-' also found in these entries (note: many are not synonyms or translations):