English word protobulge comes from English bulge, English proto-
| Dictionary entry | Language | Definition |
|---|---|---|
| bulge | English (eng) | (intransitive) To bilge, as a ship; to founder.. (intransitive) To stick out from (a surface). (colloquial) The outline of male genitals visible through clothing.. (nautical) The bilge of a vessel.. Something sticking out from a surface; a swelling, protuberant part; a bending outward, especially when caused by pressure.. The bilge or protuberant part of a cask. |
| proto- | English (eng) | (chemistry) Relating to protons and/or positive charge.. (linguistics, genetics) most recent common ancestor (often hypothetical) of. First. |
| protobulge | English (eng) | A group of stars that accumulate into a galactic bulge. |