The Collaborative International Dictionary
Aciform
Aciform \Ac"i*form\, a. [L. acus needle + -form.] Shaped like a needle.
Wiktionary
aciform
a. Shaped like a needle.
Usage examples of "aciform".
On the hills and on the exposed headÂland where the ship rested were stands of trees with sturdy ligneous stems and deep-green aciform leaves.