expirantn.
/ɛkˈspʌɪərənt/ rare.
a. (See quot. 1846.)
ΚΠ
1846 J. E. Worcester Universal Dict. Eng. Lang. Expirant, one who expires [citing I. Taylor: but see quot. 1836].
So 1864 in Webster's Amer. Dict. Eng. Lang. , and in later Dicts.
b. nonce-word. A name for a supposed vessel in plants, which assists in evaporation or perspiration.
ΚΠ
1836 I. Taylor Physical Theory Another Life (1858) 156 The Mechanical adjustment of parts, as seen..in the vessels, the absorbents, the expirents, the flower..the seed.
This entry has not yet been fully updated (first published 1894; most recently modified version published online June 2022).
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n.1836