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a suffix occurring in loanwords from Latin, where it formed feminine nouns or adjectives corresponding to agent nouns ending in -tor (Bellatrix). On this model, -trix is used in English to form feminine nouns (aviatrix; executrix) and geometrical terms denoting straight lines (directrix). Also,-trice.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.



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