acer glabrum 12 Associations

dwarf maple Rocky-mountain maple Acer glabrum maple (generic term)

acer saccharum 14 Associations

sugar maple rock maple Acer saccharum maple (generic term)

achondrite 10 Associations

rock (generic term) stone (generic term)

achondritic 11 Associations

rock stone (related term)

acid rock 9 Associations

psychedelic rock rock 'n' roll (generic term) rock'n'roll (generic term) rock-and-roll (generic term) rock and roll (generic term) rock (generic term) rock music (generic term)

acorn barnacle 14 Associations

rock barnacle Balanus balanoides barnacle (generic term) cerriped (generic term) cerripede (generic term)

agglomerate 11 Associations

volcanic rock (generic term)

alectoris graeca 16 Associations

Greek partridge rock partridge Alectoris graeca partridge (generic term)

ambloplites rupestris 21 Associations

rock bass rock sunfish Ambloplites rupestris sunfish (generic term) centrarchid (generic term)

american elm 12 Associations

American elm white elm water elm rock elm Ulmus americana elm (generic term) elm tree (generic term)

american parsley fern 21 Associations

American rock brake American parsley fern Cryptogramma acrostichoides rock brake (generic term)

american rock brake 19 Associations

American rock brake American parsley fern Cryptogramma acrostichoides rock brake (generic term)

american wall fern 18 Associations

rock polypody rock brake American wall fern Polypodium virgianum polypody (generic term)

amphibolite 11 Associations

metamorphic rock (generic term)

amygdaloid 10 Associations

volcanic rock (generic term)

andesite 8 Associations

igneous rock (generic term)

andosite 8 Associations

igneous rock (generic term)

anti-submarine rocket 21 Associations

shipboard system (generic term)

aphanite 8 Associations

rock (generic term) stone (generic term)

aphanitic 9 Associations

rock stone (related term)