claviformadj.
/ˈklavɪfɔːm/ 1. Having the form of a club; club-shaped.
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the world > space > shape > flaring at extremity > [adjective] > thickened at end
clubbedc1386
clavated1728
butted1801
clavate1803
claviform1805
pedate1866
butt-ended1869
butt-headed1891
1805 R. Jameson Treat. External Characters Minerals 29 Claviform..is composed of club-shaped parallel rods which adhere by their thin extremities. Examples, brown and black hæmatite.
1835–6 Todd's Cycl. Anat. & Physiol. I. 703/1 The foot..is claviform when it is thicker at its extremity than at its base.
1875 W. Houghton Sketches Brit. Insects 87 The claviform stigma.
2. [ < Latin clāvus] Nail-shaped. ( New Sydenham Soc. Lexicon)
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2022).
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adj.1805