- keyhole urchin
- noun
: a flat sea urchin of the order Exocycloida with long narrow apertures occurring near the margin of the test
Useful english dictionary. 2012.
keyhole urchin
Look at other dictionaries:
Keyhole urchin — Keyhole Key hole , n. 1. A hole or apertupe in a door or lock, for receiving a key. [1913 Webster] 2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key … The Collaborative International Dictionary of English
Keyhole — Key hole , n. 1. A hole or apertupe in a door or lock, for receiving a key. [1913 Webster] 2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key or… … The Collaborative International Dictionary of English
Keyhole limpet — Keyhole Key hole , n. 1. A hole or apertupe in a door or lock, for receiving a key. [1913 Webster] 2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key … The Collaborative International Dictionary of English
Keyhole saw — Keyhole Key hole , n. 1. A hole or apertupe in a door or lock, for receiving a key. [1913 Webster] 2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key … The Collaborative International Dictionary of English
cake urchin — noun Etymology: so called from the disklike shape : a strongly flattened sea urchin (order Exocycloida): as a. : sand dollar b. : keyhole urchin … Useful english dictionary
disk-urchin — ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun : a flattened sea urchin (as a sand dollar or a keyhole urchin) … Useful english dictionary
cake urchin — ▪ species of echinoderm any of the echinoid marine invertebrates of the order Clypeastroida (phylum Echinodermata), in which the body is flattened. The surface is covered with short spines (often furlike) and inconspicuous pedicellariae… … Universalium
List of acquisitions by Google — Google s logo Google is a computer software and a web search engine company. Each acquisition listed is for the respective company in its entirety, unless otherwise specified. The acquisition date listed is the date of the agreement between… … Wikipedia
Google-Dienstleistungen — 37.422222222222 122.084444444447Koordinaten: 37° 25′ 20″ N, 122° 5′ 4″ W … Deutsch Wikipedia
Google.org — 37.422222222222 122.084444444447Koordinaten: 37° 25′ 20″ N, 122° 5′ 4″ W … Deutsch Wikipedia
