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growth substance

British

noun

botany any substance, produced naturally by a plant or manufactured commercially, that, in very low concentrations, affects plant growth; a plant hormone

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is a growth substance generated in the head which reaches the tissues through the skin.

From Time Magazine Archive

HALLIBURTON, W. D., AND DRUMMOND, J. C.: The nutrition value of margarines and butter substitutes with reference to their content of the fat soluble accessory growth substance.

From The Vitamine Manual by Eddy, Walter H.

The use of growth substance powder did not significantly increase the "take".

From Northern Nut Growers Association Report of the Proceedings at the 44th Annual Meeting Rochester, N.Y. August 31 and September 1, 1953 by Northern Nut Growers Association

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