Definition that contains copt
- coptic the liturgical language of the Coptic Church used in Egypt and Ethiopia; written in the Greek alphabet
- coptic of or relating to the Copts or their church or language or art
- heliport an airport for helicopters
- skyhook helicopter carrying a reel of steel cable that can be used to lift and transport heavy objects
- deathwatch minute wingless psocopterous insects injurious to books and papers
- sikorsky United States industrialist (born in Russia) who designed the first four-engine airplane and the first mass-produced helicopter (1889-1972)
- apocrypha 14 books of the Old Testament included in the Vulgate (except for II Esdras) but omitted in Jewish and Protestant versions of the Bible; eastern Christian churches (except the Coptic Church) accept all these books as canonical; the Russian Orthodox Church accepts these texts as divinely inspired but does not grant them the same status
- siluriformes an order of fish belonging to the superorder Malacopterygii including catfishes
- soft-finned fish any fish of the superorder Malacopterygii
- rotary wing the long airfoil that rotates to provide the lift that supports a helicopter in the air