the.com/triple bond

means A chemical bond where two atoms share three pairs of electrons, making the connection shorter, stronger, and more rigid than a single or double bond.

from 'Bond' in chemistry comes from the everyday English word for a binding tie, borrowed into science in the 1800s as atoms were pictured as literally 'bonded' together by shared forces. 'Triple' is just Latin triplus, 'threefold,' bolted on once chemists worked out — via structural theory and later electron-pair bonding models in the early 1900s — that some atoms (like the two nitrogens in N2) hold on with three shared electron pairs instead of one or two.