spearlike

Spearlike is an adjective describing an object or structure that resembles a spear in form. A spearlike shape is typically elongated, tapers toward a sharp apex, and maintains a comparatively slender profile along most of its length. The base may be broader or curved, but the defining feature is a pointed tip.

In biology, spearlike forms are common in leaves described as lanceolate in botany, and in various anatomical structures such as beaks, rostra, or spines that project as slender, pointed projections. In paleontology and comparative anatomy, spearlike elements include fossil spines and teeth that converge to a pointed tip.

In geology and mineralogy, spearlike crystals and crystal aggregates are those whose habit is elongated and pointed, often with a high aspect ratio. They may be referred to as acicular or needlelike in some contexts, though spearlike emphasizes the overall spear-like profile rather than crystal facet arrangement.

In archaeology and anthropology, the term is sometimes used to describe projectile points, weapons, or tool tips that are elongated and sharpened to a point, designed for piercing or penetrating.

See also: spear, lanceolate, acicular, needlelike, projectile point.

Etymology: from spear + -like.