A small mammal, of the family Erinaceidae or subfamily Erinaceinae (spiny hedgehogs, the latter characterized by their spiny back and often by the habit of rolling up into a ball when attacked.)

(military) A static antitank and anti-landing craft obstacle, widely used during World War II, constructed from three mutually-perpendicular steel rails connected in the form of a tripod.

Third-person singular simple present indicative form of hedgehop

(intransitive) Of an aircraft: to fly very close to the ground, such that evasive manoeuvres need to be taken to avoid obstacles.

(biochemistry, sometimes capitalized) A morphogenic protein that controls cell division of adult stem cells and has been implicated in the development of some cancers.

a row of closely planted bushes or trees forming a hedge

plural of hedgerow

Third-person singular simple present indicative form of hedgehog

plural of hedgehog

One who makes or mends hedges. / One who hedges, for example in betting.