pulsar

Spelling & Dictionary Insight

The English entry for pulsar is 6 letters long, classified as anoun. Corpus data places it at rank #41,829 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "A rotating neutron star that emits radio pulses periodically.".

Our Hunspell-derived misspelling index lists 9 documented wrong-spelling variants for pulsar, with forms such as "plusar", "ppulsar", and "pulasr". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 7 confusable-pair relationships, "pulse", "pulses", "pulsed", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Blend of pulsating + (radio) star, patterned after quasar. Coined by British astronomers Antony Hewish and Jocelyn Bell in 1968, and first used in print in The Daily Telegraph. By surface analysis, pulse + -ar Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is pulsar, spelled P-U-L-S-A-R, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.