acorn : Idioms & Phrases
acorn barnacle
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noun barnacle that attaches to rocks especially in intertidal zones
rock barnacle; Balanus balanoides.
WordNet
acorn cup
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noun cup-shaped structure of hardened bracts at the base of an acorn
cupule.
WordNet
A"corn cup
Definitions
The involucre or cup in which the acorn is fixed.
Webster 1913
acorn squash
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noun squash plant bearing small acorn-shaped fruits having yellow flesh and dark green or yellow rind with longitudinal ridges
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noun small dark green or yellow ribbed squash with yellow to orange flesh
WordNet
acorn tube
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noun a small vacuum tube; used at high frequencies
WordNet
acorn-shaped
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adjective satellite shaped like an acorn
WordNet
acorn-shell
A"corn-shell` noun
Definitions
(Zoöl.) One of the sessile cirripeds; a barnacle of the genus Balanus . SeeBarnacle .
Webster 1913
sea acorn
Sea" a"corn
Definitions
(Zoöl.) An acorn barnacle ( Balanus ).