Needle-shaped is a term used to describe objects that are thin and pointed, like a needle. Acerose, ACUATE, aciculate, and acerate are all adjectives that can be used to describe something as needle-shaped. Acerose means having a shape like a needle, with seven letters. ACUATE means having a sharp point, with six letters. Aciculate means having a slender, pointed shape, with nine letters. Acerate means having a sharp point, with seven letters.