Browser extension
Search the Suttas and look words up in Dict.Dhamma.Gift — DPD, PTS, Gandhari and Sanskrit dictionaries and more — on any website: select a word or phrase (or just click on a word) and the extension shows the dictionary entry right there, without leaving the page.
In the extension's settings, pick where the result opens: Side Panel (the default), New Window, Popup, Compact, Dharmamitra, GoldenDict-NG, DictTango App, MDict (macOS) or a Custom URL. The default language is set there too (English or Русский).
Right-click a selected phrase for either a Dhamma.gift text search or a
full grammar breakdown via DharmaMitra. Right-click the extension's icon in
the toolbar for quick links to Dhamma.gift, Dict.Dhamma.Gift, Aksharamukha
and DharmaMitra. Toggle the extension on/off by clicking its icon or with a
keyboard shortcut: Ctrl+Shift+X by default (on a Mac it is
Control+Shift+X). In Firefox, Ctrl+Shift+Y (Cmd+Shift+Y on a
Mac) opens the sidebar. Shortcuts can be changed in your browser's
settings.
Opera has no listing of its own: install the extension from the Chrome Web Store (the Opera button above leads there).
Tampermonkey script (also works on Safari, which has no extensions of its own): installation instructions. The pop-up dictionary plugin can be embedded on any website — details here.
...the simile of the kacchapa (tortoise) in the discourse...
The pop-up above isn't a real screenshot of the extension (an extension
can't be embedded as an <iframe>, unlike the other examples in this
docs section) — it's a mock-up built from the extension's own real
colors and look (dictPlugin/.../content.js: background #E1EBED/
#07021D, border-radius: 8px, red close button
rgba(206,5,32,...)). A real screenshot can replace it at any time.



