The fruit of the oak, being an oval nut growing in a woody cup or cupule. / (nautical) A cone-shaped piece of wood on the point of the spindle above the vane, on the mast-head.

Furnished or loaded with acorns / (rare) Fed or filled with acorns.

plural of acorn

One of the sessile cirripeds; a barnacle of the genus Balanus.

The involucre or cup in which the acorn is fixed.

(engineering) A closed nut having a dome-like cap over the rear protruding part of the engaged screw or bolt.

Any of several varieties of a plant, Cucurbita pepo, being a dark green winter squash having yellow to orange flesh.

plural of acorn cup

plural of acorn nut

plural of acorn worm