a combining form meaning “seaweed,” “algae,” used in the formation of compound words: phycochrome.

Origin of phyco-

< Greek phȳko-, combining form representing phŷkos seaweed Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for phyco-


combining form


Word Origin for phyco-

from Greek phukos
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for phyco-

word-forming element in science meaning "seaweed, algae," from Latinized comb. form of Greek phykos "seaweed, sea wrack."

Online Etymology Dictionary, © 2010 Douglas Harper

phyco- in Medicine



Seaweed; algae:phycomycete.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.