matica
1. matica
a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt [majhen (običajno kvadraten ali šestkoten) kovinski blok z notranjo navojno luknjo, ki se pritrdi na vijak]
2. matica, kraljica
the only fertile female in a colony of social insects such as bees and ants and termites; its function is to lay eggs [edina plodna samica v koloniji družbenih žuželk, kot so čebele, mravlje in termiti; njena funkcija je, da polaga jajca]