- of a deep shade of green; olive.
Origin of olivaceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for olivaceous
The mass of the spores is olivaceous, changing to pale-brown.
The spores and capillitium, olivaceous, then purplish-brown.
Sittasomus griseicapillus (Vieillot): Olivaceous Woodcreeper.Summer Birds From the Yucatan Peninsula
Erwin E. Klaas
Sometimes a few spots or scrawls of dark “mummy brown” or “olivaceous black” stand out in sharp contrast to the other markings.
Spores globose, usually some shade of umber or olivaceous, rarely violaceous.The Myxomycetes of the Miami Valley, Ohio
A. P. Morgan
- of an olive colour