RHACHIS

Noun

rhachis (plural rhachises or rhachides)

Alternative spelling of rachis

Source: Wiktionary


Rha"chis, n.; pl. E. Rhachises, L. Rhachides. Etym: [See Rachis.] [Written also rechis.]

1. (Anat.)

Definition: The spine.

2. (Bot.) (a) The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. (b) The principal axis in a raceme, spike, panicle, or corymb.

3. (Zoöl.) (a) The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis. (b) The central cord in the stem of a crinoid. (c) The median part of the radula of a mollusk. (d) A central cord of the ovary of nematodes.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

1 May 2024

ABOUND

(verb) be in a state of movement or action; “The room abounded with screaming children”; “The garden bristled with toddlers”


coffee icon

Coffee Trivia

In the 16th century, Turkish women could divorce their husbands if the man failed to keep his family’s pot filled with coffee.

coffee icon