ersatz_read (ersatz_read) wrote in 1word1day,

Monday word: hastate

hastate (hstt), adj.
1.  spearlike, as weapons.
2.  shaped like the head of a spear.
3.  (of a leaf) triangular, with two spreading lobes at the base.

Etymology:  late 1700s, from Latin hasta, spear.

Primarily used in botany (to describe leaves); also used in biology to describe the features of some insects, crustaceans, etc.

Plants with hastate leaves include Convolvulus arvensis (field bindweed), Polygonum arifolium (tearthumb), HIbiscus militaris (halberdleaf rosemallow), Atriplex calotheca (hastate orache), and Rumex acetocella (common sheep sorrel).
Wikipedia has a long list of terms for different leaf shapes.

A 1903 patent for a type of hook-and-eye closure (from Peter M. Kling) says "In a hook-and-eye fastening device, an eye member of hastate formation and a hook member comprising an eyeleted shank, a hastate bill, a loop formed by the converging of the wires behind the hastate bill and the arms of the shank diverging from the loop to form a guideway for the reception of the engaging end of the eye member".  They don't write patents like they used to.
Tags: adjective, h, latin, wordsmith: ersatz_read

  • Wednesday Word: Frustum

    Frustum - noun. Another lovely and unique word from the math and science world. Simply put, a frustum (plural frusta or frustums is a cone or…

  • Sunday Word: Voluptuary

    voluptuary [v uh- luhp-choo-er-ee] noun: a person whose life is devoted to luxury and sensual pleasures adjective: of, relating to, or…

  • Wednesday Word: Alla prima

    Alla prima - noun. If you want to sound sophisticated at an artsy gathering, you may want to brush up on (no pun intended) alla prima works such…

  • Post a new comment


    Comments allowed for members only

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

  • 1 comment